1
|
Ho MY, Liu S, Xing B. Bacteria extracellular vesicle as nanopharmaceuticals for versatile biomedical potential. NANO CONVERGENCE 2024; 11:28. [PMID: 38990415 PMCID: PMC11239649 DOI: 10.1186/s40580-024-00434-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Accepted: 06/20/2024] [Indexed: 07/12/2024]
Abstract
Bacteria extracellular vesicles (BEVs), characterized as the lipid bilayer membrane-surrounded nanoparticles filled with molecular cargo from parent cells, play fundamental roles in the bacteria growth and pathogenesis, as well as facilitating essential interaction between bacteria and host systems. Notably, benefiting from their unique biological functions, BEVs hold great promise as novel nanopharmaceuticals for diverse biomedical potential, attracting significant interest from both industry and academia. Typically, BEVs are evaluated as promising drug delivery platforms, on account of their intrinsic cell-targeting capability, ease of versatile cargo engineering, and capability to penetrate physiological barriers. Moreover, attributing to considerable intrinsic immunogenicity, BEVs are able to interact with the host immune system to boost immunotherapy as the novel nanovaccine against a wide range of diseases. Towards these significant directions, in this review, we elucidate the nature of BEVs and their role in activating host immune response for a better understanding of BEV-based nanopharmaceuticals' development. Additionally, we also systematically summarize recent advances in BEVs for achieving the target delivery of genetic material, therapeutic agents, and functional materials. Furthermore, vaccination strategies using BEVs are carefully covered, illustrating their flexible therapeutic potential in combating bacterial infections, viral infections, and cancer. Finally, the current hurdles and further outlook of these BEV-based nanopharmaceuticals will also be provided.
Collapse
Affiliation(s)
- Ming Yao Ho
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, S637371, Singapore
| | - Songhan Liu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, S637371, Singapore
| | - Bengang Xing
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, S637371, Singapore.
| |
Collapse
|
2
|
Bras G, Satala D, Juszczak M, Kulig K, Wronowska E, Bednarek A, Zawrotniak M, Rapala-Kozik M, Karkowska-Kuleta J. Secreted Aspartic Proteinases: Key Factors in Candida Infections and Host-Pathogen Interactions. Int J Mol Sci 2024; 25:4775. [PMID: 38731993 PMCID: PMC11084781 DOI: 10.3390/ijms25094775] [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: 03/15/2024] [Revised: 04/19/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Extracellular proteases are key factors contributing to the virulence of pathogenic fungi from the genus Candida. Their proteolytic activities are crucial for extracting nutrients from the external environment, degrading host defenses, and destabilizing the internal balance of the human organism. Currently, the enzymes most frequently described in this context are secreted aspartic proteases (Saps). This review comprehensively explores the multifaceted roles of Saps, highlighting their importance in biofilm formation, tissue invasion through the degradation of extracellular matrix proteins and components of the coagulation cascade, modulation of host immune responses via impairment of neutrophil and monocyte/macrophage functions, and their contribution to antifungal resistance. Additionally, the diagnostic challenges associated with Candida infections and the potential of Saps as biomarkers were discussed. Furthermore, we examined the prospects of developing vaccines based on Saps and the use of protease inhibitors as adjunctive therapies for candidiasis. Given the complex biology of Saps and their central role in Candida pathogenicity, a multidisciplinary approach may pave the way for innovative diagnostic strategies and open new opportunities for innovative clinical interventions against candidiasis.
Collapse
Affiliation(s)
- Grazyna Bras
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland (M.Z.); (J.K.-K.)
| | - Dorota Satala
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland (M.Z.); (J.K.-K.)
| | - Magdalena Juszczak
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland (M.Z.); (J.K.-K.)
- Doctoral School of Exact and Natural Sciences, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland
| | - Kamila Kulig
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland (M.Z.); (J.K.-K.)
| | - Ewelina Wronowska
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland (M.Z.); (J.K.-K.)
| | - Aneta Bednarek
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland (M.Z.); (J.K.-K.)
- Doctoral School of Exact and Natural Sciences, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland
| | - Marcin Zawrotniak
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland (M.Z.); (J.K.-K.)
| | - Maria Rapala-Kozik
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland (M.Z.); (J.K.-K.)
| | - Justyna Karkowska-Kuleta
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland (M.Z.); (J.K.-K.)
| |
Collapse
|
3
|
Luo Z, Sheng Z, Hu L, Shi L, Tian Y, Zhao X, Yang W, Xiao Z, Shen D, Wu W, Lan T, Zhao B, Wang X, Zhuang N, Zhang JN, Wang Y, Lu Y, Wang L, Zhang C, Wang P, An J, Yang F, Li Q. Targeted macrophage phagocytosis by Irg1/itaconate axis improves the prognosis of intracerebral hemorrhagic stroke and peritonitis. EBioMedicine 2024; 101:104993. [PMID: 38324982 PMCID: PMC10862510 DOI: 10.1016/j.ebiom.2024.104993] [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: 10/11/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 02/09/2024] Open
Abstract
BACKGROUND Macrophages are innate immune cells whose phagocytosis function is critical to the prognosis of stroke and peritonitis. cis-aconitic decarboxylase immune-responsive gene 1 (Irg1) and its metabolic product itaconate inhibit bacterial infection, intracellular viral replication, and inflammation in macrophages. Here we explore whether itaconate regulates phagocytosis. METHODS Phagocytosis of macrophages was investigated by time-lapse video recording, flow cytometry, and immunofluorescence staining in macrophage/microglia cultures isolated from mouse tissue. Unbiased RNA-sequencing and ChIP-sequencing assays were used to explore the underlying mechanisms. The effects of Irg1/itaconate axis on the prognosis of intracerebral hemorrhagic stroke (ICH) and peritonitis was observed in transgenic (Irg1flox/flox; Cx3cr1creERT/+, cKO) mice or control mice in vivo. FINDINGS In a mouse model of ICH, depletion of Irg1 in macrophage/microglia decreased its phagocytosis of erythrocytes, thereby exacerbating outcomes (n = 10 animals/group, p < 0.05). Administration of sodium itaconate/4-octyl itaconate (4-OI) promoted macrophage phagocytosis (n = 7 animals/group, p < 0.05). In addition, in a mouse model of peritonitis, Irg1 deficiency in macrophages also inhibited phagocytosis of Staphylococcus aureus (n = 5 animals/group, p < 0.05) and aggravated outcomes (n = 9 animals/group, p < 0.05). Mechanistically, 4-OI alkylated cysteine 155 on the Kelch-like ECH-associated protein 1 (Keap1), consequent in nuclear translocation of nuclear factor erythroid 2-related factor 2 (Nrf2) and transcriptional activation of Cd36 gene. Blocking the function of CD36 completely abolished the phagocytosis-promoting effects of Irg1/itaconate axis in vitro and in vivo. INTERPRETATION Our findings provide a potential therapeutic target for phagocytosis-deficiency disorders, supporting further development towards clinical application for the benefit of stroke and peritonitis patients. FUNDING The National Natural Science Foundation of China (32070735, 82371321 to Q. Li, 82271240 to F. Yang) and the Beijing Natural Science Foundation Program and Scientific Research Key Program of Beijing Municipal Commission of Education (KZ202010025033 to Q. Li).
Collapse
Affiliation(s)
- Zhaoli Luo
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Ziyang Sheng
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Liye Hu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Lei Shi
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Yichen Tian
- School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Xiaochu Zhao
- School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Wei Yang
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Zhongnan Xiao
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Danmin Shen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Weihua Wu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Ting Lan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Boqian Zhao
- School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Xiaogang Wang
- School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Nan Zhuang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Jian-Nan Zhang
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Yamei Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Yabin Lu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Liyong Wang
- Core Facilities for Molecular Biology, Capital Medical University, Beijing 100069, China
| | - Chenguang Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Peipei Wang
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Jing An
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Fei Yang
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; Laboratory for Clinical Medicine, Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing 100069, China.
| | - Qian Li
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; Laboratory for Clinical Medicine, Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Capital Medical University, Beijing 100069, China.
| |
Collapse
|
4
|
Juszczak M, Zawrotniak M, Rapala-Kozik M. Complexation of fungal extracellular nucleic acids by host LL-37 peptide shapes neutrophil response to Candida albicans biofilm. Front Immunol 2024; 15:1295168. [PMID: 38384468 PMCID: PMC10880380 DOI: 10.3389/fimmu.2024.1295168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 01/15/2024] [Indexed: 02/23/2024] Open
Abstract
Candida albicans remains the predominant cause of fungal infections, where adhered microbial cells form biofilms - densely packed communities. The central feature of C. albicans biofilms is the production of an extracellular matrix (ECM) consisting of polymers and extracellular nucleic acids (eDNA, eRNA), which significantly impedes the infiltration of host cells. Neutrophils, as crucial players in the innate host defense, employ several mechanisms to eradicate the fungal infection, including NETosis, endocytosis, or the release of granules containing, among others, antimicrobial peptides (AMPs). The main representative of these is the positively charged peptide LL-37 formed from an inactive precursor (hCAP18). In addition to its antimicrobial functions, this peptide possesses a propensity to interact with negatively charged molecules, including nucleic acids. Our in vitro studies have demonstrated that LL-37 contacting with C. albicans nucleic acids, isolated from biofilm, are complexed by the peptide and its shorter derivatives, as confirmed by electrophoretic mobility shift assays. We indicated that the generation of the complexes induces discernible alterations in the neutrophil response to fungal nucleic acids compared to the effects of unconjugated molecules. Our analyses involving fluorescence microscopy, flow cytometry, and Western blotting revealed that stimulation of neutrophils with DNA:LL-37 or RNA:LL-37 complexes hamper the activation of pro-apoptotic caspases 3 and 7 and fosters increased activation of anti-apoptotic pathways mediated by the Mcl-1 protein. Furthermore, the formation of complexes elicits a dual effect on neutrophil immune response. Firstly, they facilitate increased nucleic acid uptake, as evidenced by microscopic observations, and enhance the pro-inflammatory response, promoting IL-8 production. Secondly, the complexes detection suppresses the production of reactive oxygen species and attenuates NETosis activation. In conclusion, these findings may imply that the neutrophil immune response shifts toward mobilizing the immune system as a whole, rather than inactivating the pathogen locally. Our findings shed new light on the intricate interplay between the constituents of the C. albicans biofilm and the host's immune response and indicate possible reasons for the elimination of NETosis from the arsenal of the neutrophil response during contact with the fungal biofilm.
Collapse
Affiliation(s)
- Magdalena Juszczak
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Krakow, Poland
| | - Marcin Zawrotniak
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Maria Rapala-Kozik
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| |
Collapse
|
5
|
Yadav S, Mehta P, Soni J, Chattopadhyay P, Devi P, Habyarimana T, Tardalkar K, Joshi M, Pandey R. Single-cell RNA-Seq reveals intracellular microbial diversity within immune cells during SARS-CoV-2 infection and recovery. iScience 2023; 26:108357. [PMID: 38026191 PMCID: PMC10663746 DOI: 10.1016/j.isci.2023.108357] [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: 09/11/2023] [Revised: 10/05/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
Intracellular microorganisms, like viruses, bacteria, and fungi, pose challenges in detection due to their non-culturable forms. Transcriptomic analysis at cellular level enables exploration of distributions and the impact of these microorganisms on host cells, a domain that remains underexplored because of methodological limitations. Single-cell technology shows promise in addressing this by capturing polyadenine-tailed transcripts, because recent studies confirmed polyadenylation in microbial transcriptomes. We utilized single-cell RNA-seq from PBMCs to probe intracellular microbes in healthy, SARS-CoV-2-positive, and recovered individuals. Among 76 bacterial species detected, 16 showed significant abundance differences. Buchnera aphidicola, Streptomyces clavuligerus, and Ehrlichia canis emerged significantly in memory-B, Naïve-T, and Treg cells. Staphylococcus aureus, Mycoplasma mycoides, Leptospira interrogans, and others displayed elevated levels in SARS-CoV-2-positive patients, suggesting possible disease association. This highlights the strength of single-cell technology in revealing potential microorganism's cell-specific functions. Further research is essential for functional understanding of their cell-specific abundance across physiological states.
Collapse
Affiliation(s)
- Sunita Yadav
- Division of Immunology and Infectious Disease Biology, INtegrative GENomics of HOst-PathogEn (INGEN-HOPE) Laboratory, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Mall Road, Delhi 110007, India
| | - Priyanka Mehta
- Division of Immunology and Infectious Disease Biology, INtegrative GENomics of HOst-PathogEn (INGEN-HOPE) Laboratory, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Mall Road, Delhi 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Jyoti Soni
- Division of Immunology and Infectious Disease Biology, INtegrative GENomics of HOst-PathogEn (INGEN-HOPE) Laboratory, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Mall Road, Delhi 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Partha Chattopadhyay
- Division of Immunology and Infectious Disease Biology, INtegrative GENomics of HOst-PathogEn (INGEN-HOPE) Laboratory, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Mall Road, Delhi 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Priti Devi
- Division of Immunology and Infectious Disease Biology, INtegrative GENomics of HOst-PathogEn (INGEN-HOPE) Laboratory, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Mall Road, Delhi 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Thierry Habyarimana
- Division of Immunology and Infectious Disease Biology, INtegrative GENomics of HOst-PathogEn (INGEN-HOPE) Laboratory, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Mall Road, Delhi 110007, India
- Department of Biomedical Laboratory Sciences, INES-Ruhengeri, Ruhengeri, Rwanda
| | - Kishore Tardalkar
- Dr. D. Y. Patil Medical College, Hospital and Research Institute, Kolhapur, Maharashtra 416003, India
| | - Meghnad Joshi
- Dr. D. Y. Patil Medical College, Hospital and Research Institute, Kolhapur, Maharashtra 416003, India
| | - Rajesh Pandey
- Division of Immunology and Infectious Disease Biology, INtegrative GENomics of HOst-PathogEn (INGEN-HOPE) Laboratory, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Mall Road, Delhi 110007, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| |
Collapse
|
6
|
Zawrotniak M, Juszczak M, Rapała-Kozik M. Release of neutrophil extracellular traps in response to Candida albicans yeast, as a secondary defense mechanism activated by phagocytosis. Yeast 2023; 40:349-359. [PMID: 36737224 DOI: 10.1002/yea.3842] [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: 10/31/2022] [Revised: 01/24/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
Candida albicans is one of the main pathogens responsible for the development of difficult-to-fight fungal infections called candidiasis. Neutrophils are the major effector cells involved in the eradication of fungal pathogens. This group of immune cells uses several mechanisms that enable the rapid neutralization of pathogens. The most frequently identified mechanisms are phagocytosis and the release of neutrophil extracellular traps (NETs). The mechanism for selecting the type of neutrophil immune response is still unknown. In our study, we analyzed the relationship between the activation of phagocytosis and netosis. We detected the presence of two neutrophil populations characterized by different response patterns to contact with C. albicans blastospores. The first neutrophil population showed an increased ability to rapidly release NETs without prior internalization of the pathogen. In the second population, the netosis process was inherently associated with phagocytosis. Differences between populations also referred to the production of reactive oxygen species. Our results suggest that neutrophils use different strategies to fight C. albicans and, contrary to previous reports, these mechanisms are not mutually exclusive.
Collapse
Affiliation(s)
- Marcin Zawrotniak
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Magdalena Juszczak
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Maria Rapała-Kozik
- Department of Comparative Biochemistry and Bioanalytics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| |
Collapse
|
7
|
Liu F, Ghimire L, Balasubramanian A, Hsu AY, Zhang Z, Yu H, Ma F, Luo HR. Neutrophil-specific depletion of gasdermin D does not protect against murine sepsis. Blood 2023; 141:550-554. [PMID: 36332166 PMCID: PMC9936303 DOI: 10.1182/blood.2022016931] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 10/19/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
- Fei Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, CAMS Key Laboratory for Prevention and Control of Hematological Disease Treatment Related Infection, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Laxman Ghimire
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Harvard Medical School, Boston, MA
- Department of Laboratory Medicine, Boston Children's Hospital, Boston, MA
| | - Arumugam Balasubramanian
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Harvard Medical School, Boston, MA
- Department of Laboratory Medicine, Boston Children's Hospital, Boston, MA
| | - Alan Y. Hsu
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Harvard Medical School, Boston, MA
- Department of Laboratory Medicine, Boston Children's Hospital, Boston, MA
| | - Zhaoran Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, CAMS Key Laboratory for Prevention and Control of Hematological Disease Treatment Related Infection, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Hongbo Yu
- Department of Pathology and Laboratory Medicine, VA Boston Healthcare System, Boston, MA
| | - Fengxia Ma
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, CAMS Key Laboratory for Prevention and Control of Hematological Disease Treatment Related Infection, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Hongbo R. Luo
- Department of Pathology, Dana-Farber/Harvard Cancer Center, Harvard Medical School, Boston, MA
- Department of Laboratory Medicine, Boston Children's Hospital, Boston, MA
| |
Collapse
|
8
|
Özcan A, Boyman O. Mechanisms regulating neutrophil responses in immunity, allergy, and autoimmunity. Allergy 2022; 77:3567-3583. [PMID: 36067034 PMCID: PMC10087481 DOI: 10.1111/all.15505] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/16/2022] [Accepted: 09/03/2022] [Indexed: 01/28/2023]
Abstract
Neutrophil granulocytes, or neutrophils, are the most abundant circulating leukocytes in humans and indispensable for antimicrobial immunity, as exemplified in patients with inborn and acquired defects of neutrophils. Neutrophils were long regarded as the foot soldiers of the immune system, solely destined to execute a set of effector functions against invading pathogens before undergoing apoptosis, the latter of which was ascribed to their short life span. This simplistic understanding of neutrophils has now been revised on the basis of insights gained from the use of mouse models and single-cell high-throughput techniques, revealing tissue- and context-specific roles of neutrophils in guiding immune responses. These studies also demonstrated that neutrophil responses were controlled by sophisticated feedback mechanisms, including directed chemotaxis of neutrophils to tissue-draining lymph nodes resulting in modulation of antimicrobial immunity and inflammation. Moreover, findings in mice and humans showed that neutrophil responses adapted to different deterministic cytokine signals, which controlled their migration and effector function as well as, notably, their biologic clock by affecting the kinetics of their aging. These mechanistic insights have important implications for health and disease in humans, particularly, in allergic diseases, such as atopic dermatitis and allergic asthma bronchiale, as well as in autoinflammatory and autoimmune diseases. Hence, our improved understanding of neutrophils sheds light on novel therapeutic avenues, focusing on molecularly defined biologic agents.
Collapse
Affiliation(s)
- Alaz Özcan
- Department of Immunology, University Hospital Zurich, Zurich, Switzerland
| | - Onur Boyman
- Department of Immunology, University Hospital Zurich, Zurich, Switzerland.,Faculty of Medicine, University of Zurich, Zurich, Switzerland.,Faculty of Science, University of Zurich, Zurich, Switzerland
| |
Collapse
|
9
|
Yaghoubi A, Khazaei M, Ghazvini K, Hasanian SM, Avan A, Soleimanpour S. Bacterial Peptide and Bacteriocins in Treating Gynecological Cancers. Int J Pept Res Ther 2022. [DOI: 10.1007/s10989-022-10411-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
10
|
Humayun M, Ayuso JM, Park KY, Martorelli Di Genova B, Skala MC, Kerr SC, Knoll LJ, Beebe DJ. Innate immune cell response to host-parasite interaction in a human intestinal tissue microphysiological system. SCIENCE ADVANCES 2022; 8:eabm8012. [PMID: 35544643 PMCID: PMC9075809 DOI: 10.1126/sciadv.abm8012] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 03/23/2022] [Indexed: 05/03/2023]
Abstract
Protozoan parasites that infect humans are widespread and lead to varied clinical manifestations, including life-threatening illnesses in immunocompromised individuals. Animal models have provided insight into innate immunity against parasitic infections; however, species-specific differences and complexity of innate immune responses make translation to humans challenging. Thus, there is a need for in vitro systems that can elucidate mechanisms of immune control and parasite dissemination. We have developed a human microphysiological system of intestinal tissue to evaluate parasite-immune-specific interactions during infection, which integrates primary intestinal epithelial cells and immune cells to investigate the role of innate immune cells during epithelial infection by the protozoan parasite, Toxoplasma gondii, which affects billions of people worldwide. Our data indicate that epithelial infection by parasites stimulates a broad range of effector functions in neutrophils and natural killer cell-mediated cytokine production that play immunomodulatory roles, demonstrating the potential of our system for advancing the study of human-parasite interactions.
Collapse
Affiliation(s)
- Mouhita Humayun
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Jose M. Ayuso
- Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, WI, USA
- Department of Dermatology, University of Wisconsin-Madison, Madison, WI, USA
| | - Keon Young Park
- Department of Surgery, University of Wisconsin-Madison, Madison, WI, USA
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, WI, USA
| | | | - Melissa C. Skala
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, WI, USA
| | - Sheena C. Kerr
- Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Laura J. Knoll
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, WI, USA
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI, USA
| | - David J. Beebe
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
- Department of Pathology and Laboratory Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, WI, USA
| |
Collapse
|
11
|
Platt-Samoraj A. Toxigenic Properties of Yersinia enterocolitica Biotype 1A. Toxins (Basel) 2022; 14:118. [PMID: 35202145 PMCID: PMC8877543 DOI: 10.3390/toxins14020118] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/31/2022] [Accepted: 02/03/2022] [Indexed: 01/27/2023] Open
Abstract
Yersinia (Y.) enterocolitica, an etiological agent of yersiniosis, is a bacterium whose pathogenicity is determined, among other things, by its ability to produce toxins. The aim of this article was to present the most important toxins that are produced by biotype 1A strains of Y. enterocolitica, and to discuss their role in the pathogenesis of yersiniosis. Y. enterocolitica biotype 1A strains are able to synthesize variants of thermostable YST enterotoxin and play a key role in the pathogenesis of yersiniosis. Biotype 1A strains of Y. enterocolitica also produce Y. enterocolitica pore-forming toxins, YaxA and YaxB. These toxins form pores in the cell membrane of host target cells and cause osmotic lysis, which is of particular importance in systemic infections. Insecticidal toxin complex genes have been detected in some clinical biotype 1A strains of Y. enterocolitica. However, their role has not yet been fully elucidated. Strains belonging to biotype 1A have long been considered non-pathogenic. This view is beginning to change due to the emerging knowledge about the toxigenic potential of these bacteria and their ability to overcome the defense barriers of the host organism.
Collapse
Affiliation(s)
- Aleksandra Platt-Samoraj
- Department of Epizootiology, Faculty of Veterinary Medicine, University of Warmia and Mazury, 10-718 Olsztyn, Poland
| |
Collapse
|
12
|
CHARACTERIZATION OF LESIONS INDUCED BY SPIROCERCA VULPIS (SPIRURIDAE: SPIROCERCIDAE) IN RED FOXES (VULPES VULPES). J Wildl Dis 2021; 58:137-147. [PMID: 34788835 DOI: 10.7589/jwd-d-20-00162] [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: 09/04/2020] [Accepted: 06/11/2021] [Indexed: 11/20/2022]
Abstract
Spirocerca lupi infection in dogs (Canis domesticus) is associated with esophageal lesions that may evolve to a neoplastic stage in the form of esophageal sarcoma. In the red fox (Vulpes vulpes) infected with the closely related Spirocerca vulpis, similar lesions may occur in the stomach, but neoplastic forms have not been reported. We characterize Spirocerca vulpis-induced lesions in the fox, using pathology and immunohistochemical (IHC) techniques. Seventy-one out of 163 Spirocerca vulpis-positive red foxes were selected and subjected to histopathological study. Lesions were classified as patchy or diffuse. Ten patchy and 10 diffuse lesion samples were studied using three IHC markers (CD68, CD3, and CD79α for macrophages, T lymphocytes, and B lymphocytes, respectively) and H&E stain for neutrophils and eosinophils. Intensity of necrosis, hemorrhages, and the presence of collagen was also analyzed. Of the S. vulpis-positive red foxes, 96.9% had S. vulpis nodules localized in the gastric area (wall and/or omentum), and 3.1% had nodules in the small intestine. All the samples had a moderate to severe lymphoplasmacytic infiltrate. Mild eosinophil infiltration was observed in both types of lesions, while neutrophil infiltration was significatively higher in the patchy than in the diffuse lesions. Fibrosis with mature collagen fibers was also predominant in the patchy lesions along with the presence of T lymphocytes and macrophages. Both the patchy and diffuse patterns had very few B lymphocytes. These findings suggest that the diffuse form is an earlier stage of the lesion, which eventually evolves into patchy forms. Neoplastic forms were not seen. Although more studies are necessary, this study describes the lesions, characterizes the inflammatory infiltrates, and establishes a possible evolution of the different pathological forms of S. vulpis infection in the red fox.
Collapse
|
13
|
Zhang C, Frye MD, Riordan J, Sharma A, Manohar S, Salvi R, Sun W, Hu BH. Loss of CX3CR1 augments neutrophil infiltration into cochlear tissues after acoustic overstimulation. J Neurosci Res 2021; 99:2999-3020. [PMID: 34520571 DOI: 10.1002/jnr.24925] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 06/16/2021] [Accepted: 07/02/2021] [Indexed: 12/20/2022]
Abstract
The cochlea, the sensory organ for hearing, has a protected immune environment, segregated from the systemic immune system by the blood-labyrinth barrier. Previous studies have revealed that acute acoustic injury causes the infiltration of circulating leukocytes into the cochlea. However, the molecular mechanisms controlling immune cell trafficking are poorly understood. Here, we report the role of CX3CR1 in regulating the entry of neutrophils into the cochlea after acoustic trauma. We employed B6.129P-Cx3cr1tm1Litt /J mice, a transgenic strain that lacks the gene, Cx3cr1, for coding the fractalkine receptor. Our results demonstrate that lack of Cx3cr1 results in the augmentation of neutrophil infiltration into cochlear tissues after exposure to an intense noise of 120 dB SPL for 1 hr. Neutrophil distribution in the cochlea is site specific, and the infiltration level is positively associated with noise intensity. Moreover, neutrophils are short lived and macrophage phagocytosis plays a role in neutrophil clearance, consistent with typical neutrophil dynamics in inflamed non-cochlear tissues. Importantly, our study reveals the potentiation of noise-induced hearing loss and sensory cell loss in Cx3cr1-/- mice. In wild-type control mice (Cx3cr1+/+ ) exposed to the same noise, we also found neutrophils. However, neutrophils were present primarily inside the microvessels of the cochlea, with only a few in the cochlear tissues. Collectively, our data implicate CX3CR1-mediated signaling in controlling neutrophil migration from the circulation into cochlear tissues and provide a better understanding of the impacts of neutrophils on cochlear responses to acoustic injury.
Collapse
Affiliation(s)
- Celia Zhang
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, USA.,Department of Audiology, School of Health Sciences, University of the Pacific, San Francisco, CA, USA
| | - Mitchell D Frye
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, USA
| | - Juliana Riordan
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, USA
| | - Ashu Sharma
- Department of Oral Biology, School of Dental Medicine, University of Buffalo, The State University of New York, Buffalo, NY, USA
| | | | - Richard Salvi
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, USA
| | - Wei Sun
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, USA
| | - Bo Hua Hu
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, USA
| |
Collapse
|
14
|
Jakovija A, Chtanova T. Neutrophil Interactions with the Lymphatic System. Cells 2021; 10:cells10082106. [PMID: 34440875 PMCID: PMC8393351 DOI: 10.3390/cells10082106] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 01/02/2023] Open
Abstract
The lymphatic system is a complex network of lymphatic vessels and lymph nodes designed to balance fluid homeostasis and facilitate host immune defence. Neutrophils are rapidly recruited to sites of inflammation to provide the first line of protection against microbial infections. The traditional view of neutrophils as short-lived cells, whose role is restricted to providing sterilizing immunity at sites of infection, is rapidly evolving to include additional functions at the interface between the innate and adaptive immune systems. Neutrophils travel via the lymphatics from the site of inflammation to transport antigens to lymph nodes. They can also enter lymph nodes from the blood by crossing high endothelial venules. Neutrophil functions in draining lymph nodes include pathogen control and modulation of adaptive immunity. Another facet of neutrophil interactions with the lymphatic system is their ability to promote lymphangiogenesis in draining lymph nodes and inflamed tissues. In this review, we discuss the significance of neutrophil migration to secondary lymphoid organs and within the lymphatic vasculature and highlight emerging evidence of the neutrophils’ role in lymphangiogenesis.
Collapse
Affiliation(s)
- Arnolda Jakovija
- Innate and Tumor Immunology Laboratory, Immunity Theme, Garvan Institute of Medical Research, Darlinghurst, NSW 2010, Australia;
- St Vincent’s School of Medicine, Faculty of Medicine, UNSW Sydney, Sydney, NSW 2052, Australia
| | - Tatyana Chtanova
- Innate and Tumor Immunology Laboratory, Immunity Theme, Garvan Institute of Medical Research, Darlinghurst, NSW 2010, Australia;
- School of Biotechnology and Biomolecular Sciences, Faculty of Science, UNSW Sydney, Sydney, NSW 2052, Australia
- Correspondence:
| |
Collapse
|
15
|
Wang C, Li Q, Tang C, Zhao X, He Q, Tang X, Ren J. Characterization of the blood and neutrophil-specific microbiomes and exploration of potential bacterial biomarkers for sepsis in surgical patients. IMMUNITY INFLAMMATION AND DISEASE 2021; 9:1343-1357. [PMID: 34288545 PMCID: PMC8589375 DOI: 10.1002/iid3.483] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 06/12/2021] [Accepted: 06/21/2021] [Indexed: 12/29/2022]
Abstract
Introduction Recent studies have demonstrated the presence of a circulating microbiome in the blood of healthy subjects and chronic inflammatory patients. However, our knowledge regarding the blood microbiome and its potential roles in surgical patients remains very limited. The objective of this study was to determine the blood microbial landscape in surgical patients and to explore its potential associations with postoperative sepsis. Materials and Methods 2825 patients who underwent surgical treatments were screened for enrollment and 204 cases were recruited in this study. The patients were sub‐grouped into noninfected, infected, sepsis, and septic shock according to postoperative clinical manifestations. A total of 222 blood samples were obtained for neutrophil isolation, DNA extraction and high‐throughput sequencing, quantitative proteomics analysis, and flow cytometric analyses. Results Blood and neutrophils in surgical patients and healthy controls contained highly diverse microbiomes, mainly comprising Proteobacteria, Actinobacteria, Firmicutes and Bacteroidetes. The majority (80.7%–91.5%) of the microbiomes were composed of gut‐associated bacteria. The microbiomes in septic patients were significantly distinct from those of healthy controls, and marked differences in microbiome composition were observed between sepsis and septic shock groups. Several specific bacterial genera, including Flavobacterium, Agrococcus, Polynucleobacter, and Acidovorax, could distinguish patients with septic shock from those with sepsis, with higher area under curve values. Moreover, Agrococcus, Polynucleobacter, and Acidovorax were positively associated with the sequential (sepsis‐related) organ failure assessment scores and/or acute physiology and chronic health examination scores in septic shock patients. The proteins involved in bactericidal activities of neutrophils were downregulated in septic patients. Conclusions We present evidence identifying significant changes of blood and neutrophil‐specific microbiomes across various stages of sepsis, which might be associated with the progression of sepsis after surgical treatments. Several certain bacterial genera in blood microbiome could have potential as microbial markers for early detection of sepsis.
Collapse
Affiliation(s)
- Chenyang Wang
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Qiurong Li
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Chun Tang
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xiaofan Zhao
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Qin He
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xingming Tang
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jianan Ren
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| |
Collapse
|
16
|
Filtjens J, Roger A, Quatrini L, Wieduwild E, Gouilly J, Hoeffel G, Rossignol R, Daher C, Debroas G, Henri S, Jones CM, Malissen B, Mackay LK, Moqrich A, Carbone FR, Ugolini S. Nociceptive sensory neurons promote CD8 T cell responses to HSV-1 infection. Nat Commun 2021; 12:2936. [PMID: 34006861 PMCID: PMC8131384 DOI: 10.1038/s41467-021-22841-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 03/30/2021] [Indexed: 12/13/2022] Open
Abstract
Host protection against cutaneous herpes simplex virus 1 (HSV-1) infection relies on the induction of a robust adaptive immune response. Here, we show that Nav1.8+ sensory neurons, which are involved in pain perception, control the magnitude of CD8 T cell priming and expansion in HSV-1-infected mice. The ablation of Nav1.8-expressing sensory neurons is associated with extensive skin lesions characterized by enhanced inflammatory cytokine and chemokine production. Mechanistically, Nav1.8+ sensory neurons are required for the downregulation of neutrophil infiltration in the skin after viral clearance to limit the severity of tissue damage and restore skin homeostasis, as well as for eliciting robust CD8 T cell priming in skin-draining lymph nodes by controlling dendritic cell responses. Collectively, our data reveal an important role for the sensory nervous system in regulating both innate and adaptive immune responses to viral infection, thereby opening up possibilities for new therapeutic strategies.
Collapse
Affiliation(s)
- Jessica Filtjens
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Anais Roger
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Linda Quatrini
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
- Department of Immunology, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Elisabeth Wieduwild
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Jordi Gouilly
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Guillaume Hoeffel
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Rafaëlle Rossignol
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Clara Daher
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
- Université de Paris, CNRS, Institut Cochin, INSERM, CNRS, Paris, France
| | - Guilhaume Debroas
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Sandrine Henri
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Claerwen M Jones
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Bernard Malissen
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Laura K Mackay
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Aziz Moqrich
- Aix-Marseille-Université, CNRS, Institut de Biologie du Développement de, Marseille, France
| | - Francis R Carbone
- Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Sophie Ugolini
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France.
| |
Collapse
|
17
|
Sr R, Arya LK, Siva Ganesa Karthikeyan R, Sen S. Aqueous humor cytokines and cellular profiles in pediatric ocular granulomas caused by theTrematode Fluke Procerovum sp. Ocul Immunol Inflamm 2021; 30:930-939. [PMID: 33792498 DOI: 10.1080/09273948.2020.1855356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Background: Children from coastal areas of South India develop granulomatous eye disease after swimming in their village ponds, the causative organism being trematode Procerovum.Aim: To understand the pathogenesis by analyzing the cellular profile, cytokines, and chemokines of aqueous fluid.Methods: This was a prospective study over 1 year on pediatric patients with ocular granuloma caused by a Trematode Fluke Procerovum sp. Granuloma was aspirated along with 100 µl volume of aqueous humor. Immunohistochemical analysis of granuloma was performed. Bio-Plex Pro™ Human Cytokine 17-plex Assay (M5000031YV) was used to measure cytokine and chemokines.Results: The immunohistochemistry revealed predominantly eosinophils, followed by macrophages (CD68+) and T - lymphocytes (CD4+). Both T-helper (Th) 1 and 2 mediated cytokines and chemokine levels were significantly high. As the disease duration increased, direct Th1 response reduced and was replaced by IL-12 and IL-17 mediated secondary Th1 response.Conclusion: Procerovum associated granulomatous disease is immunologically characterized by Th1 and Th2 cell-mediated responses. A balance between both arms maintains the eyes between granulomatous inflammation and healing by fibrosis.
Collapse
Affiliation(s)
- Rathinam Sr
- Aravind Eye Hospital & PG Institute of Ophthalmology, Madurai, India
| | - Lalan Kumar Arya
- Regional Institute of Ophthalmology, Indira Gandhi Institute of Medical Sciences, Patna, India
| | | | - Sagnik Sen
- Aravind Eye Hospital & PG Institute of Ophthalmology, Madurai, India
| |
Collapse
|
18
|
Covantes-Rosales CE, Toledo-Ibarra GA, González-Navarro I, Agraz-Cibrian JM, Girón-Pérez DA, Ventura-Ramon GH, Diaz-Resendiz KJG, Bueno-Durán AY, Ponce-Regalado MD, Girón-Pérez MI. Diazinon acute exposure induces neutrophil extracellular traps in Nile tilapia (Oreochromis niloticus). FOOD AGR IMMUNOL 2020. [DOI: 10.1080/09540105.2020.1798885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- C. E. Covantes-Rosales
- Laboratorio de Inmunotoxicología, Universidad Autónoma de Nayarit, Secretaría de Investigación y Posgrado, Cd de la Cultura Amado Nervo, Tepic Nayarit, México
- Laboratorio Nacional para la Investigación en Inocuidad Alimentaria (LANIIA)-Unidad Nayarit, Calle tres s/n, Colonia Ciudad Industrial, Tepic Nayarit, México
| | - G. A. Toledo-Ibarra
- Laboratorio de Inmunotoxicología, Universidad Autónoma de Nayarit, Secretaría de Investigación y Posgrado, Cd de la Cultura Amado Nervo, Tepic Nayarit, México
- Laboratorio Nacional para la Investigación en Inocuidad Alimentaria (LANIIA)-Unidad Nayarit, Calle tres s/n, Colonia Ciudad Industrial, Tepic Nayarit, México
| | - I. González-Navarro
- Laboratorio de Inmunotoxicología, Universidad Autónoma de Nayarit, Secretaría de Investigación y Posgrado, Cd de la Cultura Amado Nervo, Tepic Nayarit, México
- Unidad Académica de Ciencias Químico Biológicas y Farmacéuticas, Universidad Autónoma de Nayarit, Cd de la Cultura Amado Nervo, Tepic Nayarit, México
| | - J. M. Agraz-Cibrian
- Unidad Académica de Ciencias Químico Biológicas y Farmacéuticas, Universidad Autónoma de Nayarit, Cd de la Cultura Amado Nervo, Tepic Nayarit, México
| | - D. A. Girón-Pérez
- Laboratorio de Inmunotoxicología, Universidad Autónoma de Nayarit, Secretaría de Investigación y Posgrado, Cd de la Cultura Amado Nervo, Tepic Nayarit, México
- Laboratorio Nacional para la Investigación en Inocuidad Alimentaria (LANIIA)-Unidad Nayarit, Calle tres s/n, Colonia Ciudad Industrial, Tepic Nayarit, México
| | - G. H. Ventura-Ramon
- Laboratorio Nacional para la Investigación en Inocuidad Alimentaria (LANIIA)-Unidad Nayarit, Calle tres s/n, Colonia Ciudad Industrial, Tepic Nayarit, México
- Unidad Académica de Ciencias Químico Biológicas y Farmacéuticas, Universidad Autónoma de Nayarit, Cd de la Cultura Amado Nervo, Tepic Nayarit, México
| | - K. J. G. Diaz-Resendiz
- Laboratorio de Inmunotoxicología, Universidad Autónoma de Nayarit, Secretaría de Investigación y Posgrado, Cd de la Cultura Amado Nervo, Tepic Nayarit, México
- Laboratorio Nacional para la Investigación en Inocuidad Alimentaria (LANIIA)-Unidad Nayarit, Calle tres s/n, Colonia Ciudad Industrial, Tepic Nayarit, México
| | - A. Y. Bueno-Durán
- Laboratorio Nacional para la Investigación en Inocuidad Alimentaria (LANIIA)-Unidad Nayarit, Calle tres s/n, Colonia Ciudad Industrial, Tepic Nayarit, México
- Unidad Académica de Ciencias Químico Biológicas y Farmacéuticas, Universidad Autónoma de Nayarit, Cd de la Cultura Amado Nervo, Tepic Nayarit, México
| | - M. D. Ponce-Regalado
- Departamento de Ciencias de la Salud, Centro Universitario de los Altos, Universidad de Guadalajara Centro Universitario de los Altos Carretera a Yahualica, Tepatitlán de Morelos, Jalisco, México
| | - M. I. Girón-Pérez
- Laboratorio de Inmunotoxicología, Universidad Autónoma de Nayarit, Secretaría de Investigación y Posgrado, Cd de la Cultura Amado Nervo, Tepic Nayarit, México
- Laboratorio Nacional para la Investigación en Inocuidad Alimentaria (LANIIA)-Unidad Nayarit, Calle tres s/n, Colonia Ciudad Industrial, Tepic Nayarit, México
| |
Collapse
|
19
|
Lobo RR, Vincenzi R, Rojas-Moreno DA, Lobo AAG, da Silva CM, Benetel-Junior V, Ghussn LR, Mufalo VC, Berndt A, Gallo SB, Pinheiro RSB, Bueno ICDS, Faciola AP. Inclusion of Yerba Mate ( Ilex paraguariensis) Extract in the Diet of Growing Lambs: Effects on Blood Parameters, Animal Performance, and Carcass Traits. Animals (Basel) 2020; 10:ani10060961. [PMID: 32492885 PMCID: PMC7341229 DOI: 10.3390/ani10060961] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 05/28/2020] [Accepted: 05/30/2020] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Yerba mate (Ilex paraguariensis) is a plant widely used for human consumption in Latin America, with important health benefits for people. However, limited knowledge on its effects on animal health and nutrition are available. In this study, we evaluated the inclusion of yerba mate extract at levels up to 4% of the dry matter in the diets of growing lambs and its effects on blood parameters, animal performance, body metrics and carcass traits. Yerba mate extract up to 2% of inclusion had positive effects on feed intake and animal performance; however, greater inclusion rates had negative effects on feed intake and animal performance. Supplementation of yerba mate extract up to 2% also increased white blood cells and globulins, which have been closely related to a better immune response in animals. Abstract This study aimed to evaluate levels of yerba mate (Ilex paraguariensis) extract (YME), as a feed additive in the diets of growing lambs on serum biochemical parameters and hematological indices, animal performance, body metrics and carcass traits. Thirty-six entire (nine per treatment), male growing lambs, weighing 23.8 ± 3.7 kg, were fed the experimental diets which were treatments consisting of increasing levels of YME (0, 1, 2, and 4% inclusion on a dry matter [DM] basis) during an experimental period of 53 days. The experiment was carried out in a randomized block design, which initial body weight was used as blocking factor and the results were analyzed by orthogonal contrasts (linear, quadratic, and cubic). Yerba mate extract did not change the general health status of the animals; however, inclusions of up to 2% of the extract increased globulins (p = 0.05) and white blood cell count, as segmented neutrophils (p = 0.02) and lymphocytes (p = 0.04). Additionally, inclusion of up to 2% YME increased dry matter intake, final weight gain, total and daily gain (p < 0.05), also tended to increase ribeye area and reduce fat thickness (p < 0.10); however, YME above 2% of inclusion reduced animal productive parameters (p < 0.05). In conclusion, levels up to 2% of YME were beneficial to the health and productive parameters of growing lambs.
Collapse
Affiliation(s)
- Richard R. Lobo
- College of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (R.V.); (D.A.R.-M.); (A.A.G.L.); (C.M.d.S.); (V.B.-J.); (L.R.G.); (V.C.M.); (S.B.G.); (I.C.d.S.B.)
- Department of Animal Sciences, University of Florida, Gainesville, FL 32608, USA;
- Correspondence: ; Tel.: +1-352-870-4317
| | - Rafaela Vincenzi
- College of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (R.V.); (D.A.R.-M.); (A.A.G.L.); (C.M.d.S.); (V.B.-J.); (L.R.G.); (V.C.M.); (S.B.G.); (I.C.d.S.B.)
| | - Danny A. Rojas-Moreno
- College of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (R.V.); (D.A.R.-M.); (A.A.G.L.); (C.M.d.S.); (V.B.-J.); (L.R.G.); (V.C.M.); (S.B.G.); (I.C.d.S.B.)
| | - Annelise A. G. Lobo
- College of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (R.V.); (D.A.R.-M.); (A.A.G.L.); (C.M.d.S.); (V.B.-J.); (L.R.G.); (V.C.M.); (S.B.G.); (I.C.d.S.B.)
| | - Caroline M. da Silva
- College of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (R.V.); (D.A.R.-M.); (A.A.G.L.); (C.M.d.S.); (V.B.-J.); (L.R.G.); (V.C.M.); (S.B.G.); (I.C.d.S.B.)
| | - Vanderlei Benetel-Junior
- College of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (R.V.); (D.A.R.-M.); (A.A.G.L.); (C.M.d.S.); (V.B.-J.); (L.R.G.); (V.C.M.); (S.B.G.); (I.C.d.S.B.)
| | - Laura R. Ghussn
- College of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (R.V.); (D.A.R.-M.); (A.A.G.L.); (C.M.d.S.); (V.B.-J.); (L.R.G.); (V.C.M.); (S.B.G.); (I.C.d.S.B.)
| | - Vinícius C. Mufalo
- College of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (R.V.); (D.A.R.-M.); (A.A.G.L.); (C.M.d.S.); (V.B.-J.); (L.R.G.); (V.C.M.); (S.B.G.); (I.C.d.S.B.)
| | - Alexandre Berndt
- Embrapa Southeast Livestock, Brazilian Agricultural Research Corporation, São Carlos 13560-970, SP, Brazil;
| | - Sarita B. Gallo
- College of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (R.V.); (D.A.R.-M.); (A.A.G.L.); (C.M.d.S.); (V.B.-J.); (L.R.G.); (V.C.M.); (S.B.G.); (I.C.d.S.B.)
| | - Rafael S. B. Pinheiro
- College of Engineering, São Paulo State University, Ilha Solteira 15385-000, SP, Brazil;
| | - Ives C. da S. Bueno
- College of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (R.V.); (D.A.R.-M.); (A.A.G.L.); (C.M.d.S.); (V.B.-J.); (L.R.G.); (V.C.M.); (S.B.G.); (I.C.d.S.B.)
| | - Antonio P. Faciola
- Department of Animal Sciences, University of Florida, Gainesville, FL 32608, USA;
| |
Collapse
|
20
|
Abstract
Mycobacterium tuberculosis remains the leading cause of death attributed to a single infectious organism. Bacillus Calmette-Guerin (BCG), the standard vaccine against M. tuberculosis, is thought to prevent only 5% of all vaccine-preventable deaths due to tuberculosis, thus an alternative vaccine is required. One of the principal barriers to vaccine development against M. tuberculosis is the complexity of the immune response to infection, with uncertainty as to what constitutes an immunological correlate of protection. In this paper, we seek to give an overview of the immunology of M. tuberculosis infection, and by doing so, investigate possible targets of vaccine development. This encompasses the innate, adaptive, mucosal and humoral immune systems. Though MVA85A did not improve protection compared with BCG alone in a large-scale clinical trial, the correlates of protection this has revealed, in addition to promising results from candidate such as VPM1002, M72/ASO1E and H56:IC31 point to a brighter future in the field of TB vaccine development.
Collapse
Affiliation(s)
- Benedict Brazier
- The Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7DQ UK
| | - Helen McShane
- The Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7DQ UK
| |
Collapse
|
21
|
Reinholz M, Clanner-Engelshofen BM, Heppt MV, Marsela E, Kawakami Y, Wiest LG, French LE, Stolz W, Gauglitz GG. Dermal fillers do not induce upregulation of NLRP3 inflammasomes or expression of inflammatory cytokines in granulomas. J Cosmet Dermatol 2020; 19:2838-2844. [PMID: 32108418 DOI: 10.1111/jocd.13341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/20/2019] [Accepted: 02/06/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Filling materials have increasingly been used in aesthetics over the last decades. Understanding the pathophysiology of granuloma formation as a very relevant unwanted side effect of filler application may be essential to help avoid these adverse events. AIMS Our aim was to investigate the role of the inflammasome in the formation of filler granuloma, as a central column of the innate immune response. METHODS RPMI 1640 medium was used for growth of THP-1 cells and the induction of THP-1 macrophages. Sonication was applied in order to crush the acrylic particles of the filler. ELISA was the method of analysis for the specific cytokines. Biopsy specimens of filler granuloma were analyzed by various immunohistochemical methods. GraphPad Prism 5 software was used for the statistical data analysis. RESULTS Neither was the sensor NALP3 overexpressed, nor could an elevated expression of cleaved IL-1β, IL-18, or IFN-γ be detected. Furthermore, no increased expression of IL-8 or IL-1β was detectable in vitro. CONCLUSION No increased inflammasome activation could be observed; however, filler granulomas were infiltrated with granulocytes and macrophages. Therefore, we speculate that an unspecific immune response might be the key player in the formation of filler granuloma.
Collapse
Affiliation(s)
- Markus Reinholz
- Department of Dermatology and Allergy, Ludwig-Maximilian-University, Munich, Germany
| | | | - Markus V Heppt
- Department of Dermatology and Allergy, Ludwig-Maximilian-University, Munich, Germany
| | - Enklajd Marsela
- Department of Dermatology and Allergy, Ludwig-Maximilian-University, Munich, Germany
| | - Yoshio Kawakami
- Department of Dermatology, Okayama University, Okayama, Japan
| | | | - Lars E French
- Department of Dermatology and Allergy, Ludwig-Maximilian-University, Munich, Germany
| | - Wilhelm Stolz
- Clinic for Dermatology, Allergy and Environmental Medicine, Hospital Thalkirchner Strasse, Munchen, Germany
| | - Gerd G Gauglitz
- Department of Dermatology and Allergy, Ludwig-Maximilian-University, Munich, Germany
| |
Collapse
|
22
|
Lentini G, Famà A, Biondo C, Mohammadi N, Galbo R, Mancuso G, Iannello D, Zummo S, Giardina M, De Gaetano GV, Teti G, Beninati C, Midiri A. Neutrophils Enhance Their Own Influx to Sites of Bacterial Infection via Endosomal TLR-Dependent Cxcl2 Production. THE JOURNAL OF IMMUNOLOGY 2019; 204:660-670. [PMID: 31852751 DOI: 10.4049/jimmunol.1901039] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 11/19/2019] [Indexed: 12/27/2022]
Abstract
The influx of neutrophils to infection sites is a fundamental step in host defenses against the frequent human pathogen group B Streptococcus (GBS) and other extracellular bacteria. Using a mouse model of GBS-induced peritonitis, we show in this study that the chemokines Cxcl1 and Cxcl2 play distinctive roles in enhancing the recruitment and the antibacterial activities of neutrophils in a manner that is linked to differences in the cellular sources of these mediators. Cell depletion experiments demonstrated that neutrophils make a significant contribution to the in vivo production of Cxcl2 but not Cxcl1. In vitro, neutrophils responded weakly to LPS but released high levels of Cxcl2 after stimulation with GBS or other bacteria. Neutrophil-derived Cxcl2 acted in an autocrinous manner to increase its own production and to enhance antibacterial activities, including the release of oxygen radicals. In both neutrophils and macrophages, the production of Cxcl1/2 largely required the presence of functional UNC93B1, a chaperone protein involved in signaling by endosomal TLRs. Moreover, the phenotype of UNC93B1-defective phagocytes could be recapitulated by the simultaneous absence of TLR7, 9, and 13 but not by the absence of individual TLRs. Collectively, our data show that neutrophils recognize Gram-positive and Gram-negative bacteria by means of multiple phagosomal TLRs, resulting in de novo synthesis of Cxcl2, amplification of neutrophil recruitment, and potentiation of their antibacterial activities. These data may be useful to devise alternative therapeutic strategies aimed at enhancing the recruitment and the functional activities of polymorphonuclear leukocytes during infections caused by antibiotic-resistant bacteria.
Collapse
Affiliation(s)
- Germana Lentini
- Department of Human Pathology, University of Messina, 98125 Messina, Italy
| | - Agata Famà
- Charybdis Vaccines Srl, 98125 Messina, Italy
| | - Carmelo Biondo
- Department of Human Pathology, University of Messina, 98125 Messina, Italy
| | - Nastaran Mohammadi
- Department of Human Pathology, University of Messina, 98125 Messina, Italy
| | - Roberta Galbo
- Department of Chemical, Biological, Pharmaceutical Sciences and Environmental Sciences, University of Messina, 98166 Messina, Italy; and
| | - Giuseppe Mancuso
- Department of Human Pathology, University of Messina, 98125 Messina, Italy
| | - Daniela Iannello
- Department of Human Pathology, University of Messina, 98125 Messina, Italy
| | - Sebastiana Zummo
- Department of Human Pathology, University of Messina, 98125 Messina, Italy
| | - Miriam Giardina
- Department of Human Pathology, University of Messina, 98125 Messina, Italy
| | | | | | - Concetta Beninati
- Department of Human Pathology, University of Messina, 98125 Messina, Italy.,Scylla Biotech SRL, 98125 Messina, Italy
| | - Angelina Midiri
- Department of Human Pathology, University of Messina, 98125 Messina, Italy
| |
Collapse
|
23
|
Prakash Babu S, Narasimhan PB, Babu S. Eosinophil Polymorphonuclear Leukocytes in TB: What We Know so Far. Front Immunol 2019; 10:2639. [PMID: 31798582 PMCID: PMC6868031 DOI: 10.3389/fimmu.2019.02639] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 10/24/2019] [Indexed: 01/21/2023] Open
Abstract
Knowledge on the cellular immune responses to infection with Mycobacterium tuberculosis has improved drastically in recent years. Though eosinophils and hypereosinophilia are linked with the disease process of tuberculosis, there is paucity of information to prove the actual role played by these polymorphonuclear leukocytes. The aim of this review is to provide an overview of the existing literature on what is known so far about eosinophils and tuberculosis.
Collapse
Affiliation(s)
| | - Prakash B Narasimhan
- Preventive and Social Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
| | - Subash Babu
- National Institute of Research in Tuberculosis (ICMR), Chennai, India.,Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases (NIH), Bethesda, MD, United States
| |
Collapse
|
24
|
De Maio F, Palmieri V, Salustri A, Perini G, Sanguinetti M, De Spirito M, Delogu G, Papi M. Graphene oxide prevents mycobacteria entry into macrophages through extracellular entrapment. NANOSCALE ADVANCES 2019; 1:1421-1431. [PMID: 36132595 PMCID: PMC9419007 DOI: 10.1039/c8na00413g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Accepted: 01/14/2019] [Indexed: 05/08/2023]
Abstract
Tuberculosis (TB) remains a global threat and there is an urgent need for improved drugs and treatments, particularly against the drug-resistant strains of Mycobacterium tuberculosis (Mtb). Graphene oxide (GO) is an innovative bi-dimensional nanomaterial that when administered in vivo accumulates in the lungs. Further, GO is readily degraded by peroxidases and has a high drug loading capacity and antibacterial properties. In this study, we first evaluated the GO anti-mycobacterial properties using Mycobacterium smegmatis (Ms) as a model. We observed that GO, when administered with the bacteria, was able to trap Ms in a dose-dependent manner, reducing entry of bacilli into macrophages. However, GO did not show any anti-mycobacterial activity when used to treat infected cells or when macrophages were pre-treated before infection. Similar results were obtained when the virulent Mtb strain was used, showing that GO was able to trap Mtb and prevent entry into microphages. These results indicate that GO can be a promising tool to design improved therapies against TB.
Collapse
Affiliation(s)
- Flavio De Maio
- Institute of Microbiology, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS Roma Italy
| | - Valentina Palmieri
- Institute of Physics, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS Largo A. Gemelli, 8 00168 Roma Italy
| | - Alessandro Salustri
- Institute of Microbiology, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS Roma Italy
| | - Giordano Perini
- Institute of Physics, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS Largo A. Gemelli, 8 00168 Roma Italy
| | - Maurizio Sanguinetti
- Institute of Microbiology, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS Roma Italy
| | - Marco De Spirito
- Institute of Physics, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS Largo A. Gemelli, 8 00168 Roma Italy
| | - Giovanni Delogu
- Institute of Microbiology, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS Roma Italy
| | - Massimiliano Papi
- Institute of Physics, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS Largo A. Gemelli, 8 00168 Roma Italy
| |
Collapse
|
25
|
Stegelmeier AA, van Vloten JP, Mould RC, Klafuric EM, Minott JA, Wootton SK, Bridle BW, Karimi K. Myeloid Cells during Viral Infections and Inflammation. Viruses 2019; 11:E168. [PMID: 30791481 PMCID: PMC6410039 DOI: 10.3390/v11020168] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/15/2019] [Accepted: 02/16/2019] [Indexed: 12/11/2022] Open
Abstract
Myeloid cells represent a diverse range of innate leukocytes that are crucial for mounting successful immune responses against viruses. These cells are responsible for detecting pathogen-associated molecular patterns, thereby initiating a signaling cascade that results in the production of cytokines such as interferons to mitigate infections. The aim of this review is to outline recent advances in our knowledge of the roles that neutrophils and inflammatory monocytes play in initiating and coordinating host responses against viral infections. A focus is placed on myeloid cell development, trafficking and antiviral mechanisms. Although known for promoting inflammation, there is a growing body of literature which demonstrates that myeloid cells can also play critical regulatory or immunosuppressive roles, especially following the elimination of viruses. Additionally, the ability of myeloid cells to control other innate and adaptive leukocytes during viral infections situates these cells as key, yet under-appreciated mediators of pathogenic inflammation that can sometimes trigger cytokine storms. The information presented here should assist researchers in integrating myeloid cell biology into the design of novel and more effective virus-targeted therapies.
Collapse
Affiliation(s)
- Ashley A Stegelmeier
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - Jacob P van Vloten
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - Robert C Mould
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - Elaine M Klafuric
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - Jessica A Minott
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - Sarah K Wootton
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - Byram W Bridle
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| | - Khalil Karimi
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada.
| |
Collapse
|
26
|
Dindot SV, Doan RN, Kuskie KR, Hillman PR, Whitfield CM, McQueen CM, Bordin AI, Bourquin JR, Cohen ND. Postnatal changes in epigenetic modifications of neutrophils of foals are associated with increased ROS function and regulation of neutrophil function. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2018; 87:182-187. [PMID: 29958850 DOI: 10.1016/j.dci.2018.06.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 06/25/2018] [Accepted: 06/25/2018] [Indexed: 06/08/2023]
Abstract
Neonates of all species, including foals, are highly susceptible to infection, and neutrophils play a crucial role in innate immunity to infection. Evidence exists that neutrophils of neonatal foals are functionally deficient during the first weeks of life, including expression of cytokine genes such as IFNG. We hypothesized that postnatal epigenetic changes were likely to regulate the observed age-related changes in foal neutrophils. Using ChIP-Seq, we identified significant differences in trimethylated histone H3 lysine 4, an epigenetic modification associated with active promoters and enhancers, in neutrophils in foals at 30 days of age relative to 1 day of age. These chromatin changes were associated with genes implicated in immune responses and were consistent with age-related changes in neutrophil functional responses including ROS generation and IFN expression. Postnatal changes in epigenetic modifications suggest that environmentally-mediated cues help to promote maturation of neutrophil functional responses. Elucidating the environmental triggers and their signaling pathways could provide a means for improving innate immune responses of neonates to improve their ability to combat infectious diseases.
Collapse
Affiliation(s)
- Scott V Dindot
- Department of Veterinary Pathobiology, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, TX, USA; Department of Molecular and Cellular Medicine, Texas A&M Health Science Center College of Medicine, College Station, TX, USA.
| | - Ryan N Doan
- Department of Veterinary Pathobiology, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, TX, USA
| | - Kyle R Kuskie
- Department of Large Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, TX, USA
| | - Paul R Hillman
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center College of Medicine, College Station, TX, USA
| | - Canaan M Whitfield
- Department of Large Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, TX, USA
| | - Cole M McQueen
- Department of Large Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, TX, USA
| | - Angela I Bordin
- Department of Large Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, TX, USA
| | - Jessica R Bourquin
- Department of Large Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, TX, USA
| | - Noah D Cohen
- Department of Large Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, TX, USA.
| |
Collapse
|
27
|
Gupta N, Kumar R, Agrawal B. New Players in Immunity to Tuberculosis: The Host Microbiome, Lung Epithelium, and Innate Immune Cells. Front Immunol 2018; 9:709. [PMID: 29692778 PMCID: PMC5902499 DOI: 10.3389/fimmu.2018.00709] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 03/22/2018] [Indexed: 12/31/2022] Open
Abstract
Tuberculosis (TB) is a highly contagious infection and devastating chronic disease, causing 10.4 million new infections and 1.8 million deaths every year globally. Efforts to control and eradicate TB are hampered by the rapid emergence of drug resistance and limited efficacy of the only available vaccine, BCG. Immunological events in the airways and lungs are of major importance in determining whether exposure to Mycobacterium tuberculosis (Mtb) results in successful infection or protective immunity. Several studies have demonstrated that the host microbiota is in constant contact with the immune system, and thus continually directs the nature of immune responses occurring during new infections. However, little is known about its role in the eventual outcome of the mycobacterial infection. In this review, we highlight the changes in microbial composition in the respiratory tract and gut that have been linked to the alteration of immune responses, and to the risk, prevention, and treatment of TB. In addition, we summarize our current understanding of alveolar epithelial cells and the innate immune system, and their interaction with Mtb during early infection. Extensive studies are warranted to fully understand the all-inclusive role of the lung microbiota, its interaction with epithelium and innate immune responses and resulting adaptive immune responses, and in the pathogenesis and/or protection from Mtb infection. Novel interventions aimed at influencing the microbiota, the alveolar immune system and innate immunity will shape future strategies of prevention and treatment for TB.
Collapse
Affiliation(s)
- Nancy Gupta
- Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Rakesh Kumar
- Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Babita Agrawal
- Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| |
Collapse
|
28
|
Li Q, Wang C, Tang C, Zhao X, He Q, Li J. Identification and Characterization of Blood and Neutrophil-Associated Microbiomes in Patients with Severe Acute Pancreatitis Using Next-Generation Sequencing. Front Cell Infect Microbiol 2018; 8:5. [PMID: 29423379 PMCID: PMC5790034 DOI: 10.3389/fcimb.2018.00005] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 01/09/2018] [Indexed: 01/28/2023] Open
Abstract
Infectious complications are a leading cause of death for patients with severe acute pancreatitis (SAP). Yet, our knowledge about details of the blood microbial landscape in SAP patients remains limited. Recently, some studies have reported that the peripheral circulation harbors a diverse bacterial community in healthy and septic subjects. The objective of this study was to examine the presence of the blood bacterial microbiome in SAP patients and its potential role in the development of infectious complications. Here we conducted a prospective observational study on a cohort of 50 SAP patients and 12 healthy subjects to profile the bacterial composition in the blood. The patients were subgrouped into uninfected (n = 17), infected (n = 16), and septic (n = 17) cases. Applying 16S rDNA-based next-generation sequencing technique, we investigated blood and neutrophil-associated microbiomes in SAP patients, and assessed their connections with immunological alterations. Based on the sequencing data, a diverse bacterial microbiota was found in peripheral blood and neutrophils from the healthy and SAP subjects. As compared to healthy controls, the blood and neutrophil-associated microbiomes in the patients were significantly altered, with an expansion in Bacteroidetes and Firmicutes as well as a decrease in Actinobacteria. Variations in the microbiome composition in patients were associated with immunological disorders, including altered lymphocyte subgroups, elevated levels of serum cytokines and altered proteomic profiles of neutrophils. However, no significant compositional difference was observed between the patient subgroups, implying that the microbiota alterations might not be linked to presence/absence of infectious complications in SAP. Together, we present an initial description of the blood and neutrophil-associated bacterial profiles in SAP patients, offering novel evidence for the existence of the blood microbiome. Identification of the blood microbiome provides novel insights into characteristics and diagnostics of bacteremia in the patients. Further study is required to assess the possible implications of the blood microbiome in health and diseases.
Collapse
Affiliation(s)
- Qiurong Li
- Research Institute of General Surgery, Jinling Hospital, Medical School, Nanjing University, Nanjing, China
| | - Chenyang Wang
- Research Institute of General Surgery, Jinling Hospital, Medical School, Nanjing University, Nanjing, China
| | - Chun Tang
- Research Institute of General Surgery, Jinling Hospital, Medical School, Nanjing University, Nanjing, China
| | - Xiaofan Zhao
- Research Institute of General Surgery, Jinling Hospital, Medical School, Nanjing University, Nanjing, China
| | - Qin He
- Research Institute of General Surgery, Jinling Hospital, Medical School, Nanjing University, Nanjing, China
| | - Jieshou Li
- Research Institute of General Surgery, Jinling Hospital, Medical School, Nanjing University, Nanjing, China
| |
Collapse
|
29
|
Magalhães LMD, Viana A, de Jesus AC, Chiari E, Galvão L, Gomes JA, Gollob KJ, Dutra WO. Distinct Trypanosoma cruzi isolates induce activation and apoptosis of human neutrophils. PLoS One 2017; 12:e0188083. [PMID: 29176759 PMCID: PMC5703490 DOI: 10.1371/journal.pone.0188083] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Accepted: 10/31/2017] [Indexed: 11/18/2022] Open
Abstract
Neutrophils are critical players in the first line of defense against pathogens and in the activation of subsequent cellular responses. We aimed to determine the effects of the interaction of Trypanosoma cruzi with human neutrophils, using isolates of the two major discrete type units (DTUs) associated with Chagas’ disease in Latin America (clone Col1.7G2 and Y strain, DTU I and II, respectively). Thus, we used CFSE-stained trypomastigotes to measure neutrophil-T. cruzi interaction, neutrophil activation, cytokine expression and death, after infection with Col1.7G2 and Y strain. Our results show that the frequency of CFSE+ neutrophils, indicative of interaction, and CFSE intensity on a cell-per-cell basis were similar when comparing Col1.7G2 and Y strains. Interaction with T. cruzi increased neutrophil activation, as measured by CD282, CD284, TNF and IL-12 expression, although at different levels between the two strains. No change in IL-10 expression was observed after interaction of neutrophils with either strain. We observed that exposure to Y and Col1.7G2 caused marked neutrophil death. This was specific to neutrophils, since interaction of either strain with monocytes did not cause death. Our further analysis showed that neutrophil death was a result of apoptosis, which was associated with an upregulation of TNF-receptor, TNF and FasLigand, but not of Fas. Induction of TNF-associated neutrophil apoptosis by the different T. cruzi isolates may act as an effective common mechanism to decrease the host’s immune response and favor parasite survival.
Collapse
Affiliation(s)
- Luísa M. D. Magalhães
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Agostinho Viana
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Augusto C. de Jesus
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Egler Chiari
- Laboratório de Biologia do Trypanosoma cruzi e doença de Chagas, Departamento de Parasitologia, Instituto de Ciências Biológicas, Belo Horizonte, Minas Gerais, Brazil
| | - Lúcia Galvão
- Laboratório de Biologia do Trypanosoma cruzi e doença de Chagas, Departamento de Parasitologia, Instituto de Ciências Biológicas, Belo Horizonte, Minas Gerais, Brazil
| | - Juliana A. Gomes
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Kenneth J. Gollob
- Núcleo de Ensino e Pesquisa, Instituto Mario Pena, Belo Horizonte, Minas Gerais, Brazil
- BRISA Diagnósticos, Belo Horizonte, Minas Gerais, Brazil
- AC Camargo Cancer Center, International Center for Research, São Paulo, São Paulo, Brazil
- INCT-DT, Belo Horizonte, Minas Gerais, Brazil
| | - Walderez O. Dutra
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- INCT-DT, Belo Horizonte, Minas Gerais, Brazil
- * E-mail:
| |
Collapse
|
30
|
Phosphatidylinositol (4,5)-bisphosphate-mediated pathophysiological effect of HIV-1 Tat protein. Biochimie 2017; 141:80-85. [DOI: 10.1016/j.biochi.2017.05.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 05/21/2017] [Indexed: 11/23/2022]
|
31
|
Assani K, Shrestha CL, Robledo-Avila F, Rajaram MV, Partida-Sanchez S, Schlesinger LS, Kopp BT. Human Cystic Fibrosis Macrophages Have Defective Calcium-Dependent Protein Kinase C Activation of the NADPH Oxidase, an Effect Augmented by Burkholderia cenocepacia. THE JOURNAL OF IMMUNOLOGY 2017; 198:1985-1994. [PMID: 28093527 DOI: 10.4049/jimmunol.1502609] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 12/22/2016] [Indexed: 01/07/2023]
Abstract
Macrophage intracellular pathogen killing is defective in cystic fibrosis (CF), despite abundant production of reactive oxygen species (ROS) in lung tissue. Burkholderia species can cause serious infection in CF and themselves affect key oxidase components in murine non-CF cells. However, it is unknown whether human CF macrophages have an independent defect in the oxidative burst and whether Burkholderia contributes to this defect in terms of assembly of the NADPH oxidase complex and subsequent ROS production. In this article, we analyze CF and non-CF human monocyte-derived macrophages (MDMs) for ROS production, NADPH assembly capacity, protein kinase C expression, and calcium release in response to PMA and CF pathogens. CF MDMs demonstrate a nearly 60% reduction in superoxide production after PMA stimulation compared with non-CF MDMs. Although CF MDMs generally have increased total NADPH component protein expression, they demonstrate decreased expression of the calcium-dependent protein kinase C conventional subclass α/β leading to reduced phosphorylation of NADPH oxidase components p47 phox and p40 phox in comparison with non-CF MDMs. Ingestion of B. cenocepacia independently contributes to and worsens the overall oxidative burst deficits in CF MDMs compared with non-CF MDMs. Together, these results provide evidence for inherent deficits in the CF macrophage oxidative burst caused by decreased phosphorylation of NADPH oxidase cytosolic components that are augmented by Burkholderia These findings implicate a critical role for defective macrophage oxidative responses in persistent bacterial infections in CF and create new opportunities for boosting the macrophage immune response to limit infection.
Collapse
Affiliation(s)
- Kaivon Assani
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43205
| | - Chandra L Shrestha
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43205
| | - Frank Robledo-Avila
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43205
| | - Murugesan V Rajaram
- Center for Microbial Interface Biology, Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210; and
| | - Santiago Partida-Sanchez
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43205
| | - Larry S Schlesinger
- Center for Microbial Interface Biology, Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210; and
| | - Benjamin T Kopp
- Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, Columbus, OH 43205; .,Center for Microbial Interface Biology, Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210; and.,Section of Pediatric Pulmonology, Nationwide Children's Hospital, Columbus, OH 43205
| |
Collapse
|
32
|
Chen W, Lu X, Chen Y, Li M, Mo P, Tong Z, Wang W, Wan W, Su G, Xu J, Yu C. Steroid Receptor Coactivator 3 Contributes to Host Defense against Enteric Bacteria by Recruiting Neutrophils via Upregulation of CXCL2 Expression. THE JOURNAL OF IMMUNOLOGY 2017; 198:1606-1615. [PMID: 28053238 DOI: 10.4049/jimmunol.1600300] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 11/30/2016] [Indexed: 01/11/2023]
Abstract
Steroid receptor coactivator 3 (SRC-3) is a transcriptional coactivator that interacts with nuclear receptors and some other transcription factors to enhance their effects on target gene transcription. We reported previously that SRC-3-deficient (SRC-3-/-) mice are extremely susceptible to Escherichia coli-induced septic peritonitis as a result of uncontrolled inflammation and a defect in bacterial clearance. In this study, we observed significant upregulation of SRC-3 in colonic epithelial cells in response to Citrobacter rodentium infection. Based on these findings, we hypothesized that SRC-3 is involved in host defense against attaching and effacing bacterial infection. We compared the responses of SRC-3-/- and wild-type mice to intestinal C. rodentium infection. We found that SRC-3-/- mice exhibited delayed clearance of C. rodentium and more severe tissue pathology after oral infection with C. rodentium compared with wild-type mice. SRC-3-/- mice expressed normal antimicrobial peptides in the colons but exhibited delayed recruitment of neutrophils into the colonic mucosa. Accordingly, SRC-3-/- mice showed a delayed induction of CXCL2 and CXCL5 in colonic epithelial cells, which are responsible for neutrophil recruitment. At the molecular level, we found that SRC-3 can activate the NF-κB signaling pathway to promote CXCL2 expression at the transcriptional level. Collectively, we show that SRC-3 contributes to host defense against enteric bacteria, at least in part via upregulating CXCL2 expression to recruit neutrophils.
Collapse
Affiliation(s)
- Wenbo Chen
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China.,The First Affiliated Hospital of Xiamen University, Xiamen 361001, China; and
| | - Xuqiang Lu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Yuan Chen
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Ming Li
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Pingli Mo
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Zhangwei Tong
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Wei Wang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Wei Wan
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China
| | - Guoqiang Su
- The First Affiliated Hospital of Xiamen University, Xiamen 361001, China; and
| | - Jianming Xu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030
| | - Chundong Yu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China;
| |
Collapse
|
33
|
Parsa R, Lund H, Georgoudaki AM, Zhang XM, Ortlieb Guerreiro-Cacais A, Grommisch D, Warnecke A, Croxford AL, Jagodic M, Becher B, Karlsson MCI, Harris RA. BAFF-secreting neutrophils drive plasma cell responses during emergency granulopoiesis. J Exp Med 2016; 213:1537-53. [PMID: 27432941 PMCID: PMC4986521 DOI: 10.1084/jem.20150577] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 05/24/2016] [Indexed: 01/10/2023] Open
Abstract
Harris and collaborators show that neutropenia results in increased formation of plasma cells and elevated antibody production. Prolonged infections or adjuvant usage can trigger emergency granulopoiesis (EG), leading to dysregulation in neutrophil blood counts. However, the impact of EG on T and B cell function remains largely unknown. In this study, to address this question, we used a mouse model of neutropenia and studied immune activation after adjuvant administration. The initial neutropenic state fostered an environment of increased dendritic cell activation and T cell–derived IL-17 production. Interestingly, neutropenic lysozyme 2–diphtheria toxin A mice exhibited striking EG and amplified neutrophil recruitment to the lymph nodes (LNs) that was dependent on IL-17–induced prostaglandin activity. The recruited neutrophils secreted a B cell–activating factor that highly accelerated plasma cell generation and antigen-specific antibody production. Reduction of neutrophil functions via granulocyte colony-stimulating factor neutralization significantly diminished plasma cell formation, directly linking EG with the humoral immune response. We conclude that neutrophils are capable of directly regulating T cell–dependent B cell responses in the LN.
Collapse
Affiliation(s)
- Roham Parsa
- Applied Immunology and Immunotherapy, Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, Karolinska Hospital at Solna, S-171 76 Stockholm, Sweden
| | - Harald Lund
- Applied Immunology and Immunotherapy, Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, Karolinska Hospital at Solna, S-171 76 Stockholm, Sweden
| | - Anna-Maria Georgoudaki
- B Cell Biology, Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, S-171 77 Stockholm, Sweden
| | - Xing-Mei Zhang
- Applied Immunology and Immunotherapy, Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, Karolinska Hospital at Solna, S-171 76 Stockholm, Sweden
| | - André Ortlieb Guerreiro-Cacais
- Neuroimmunology, Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, Karolinska Hospital at Solna, S-171 76 Stockholm, Sweden
| | - David Grommisch
- Applied Immunology and Immunotherapy, Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, Karolinska Hospital at Solna, S-171 76 Stockholm, Sweden
| | - Andreas Warnecke
- Applied Immunology and Immunotherapy, Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, Karolinska Hospital at Solna, S-171 76 Stockholm, Sweden
| | - Andrew L Croxford
- Institute of Experimental Immunology, University of Zurich, CH-8057 Zürich, Switzerland
| | - Maja Jagodic
- Neuroimmunology, Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, Karolinska Hospital at Solna, S-171 76 Stockholm, Sweden
| | - Burkhard Becher
- Institute of Experimental Immunology, University of Zurich, CH-8057 Zürich, Switzerland
| | - Mikael C I Karlsson
- B Cell Biology, Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, S-171 77 Stockholm, Sweden
| | - Robert A Harris
- Applied Immunology and Immunotherapy, Department of Clinical Neuroscience, Karolinska Institutet, Center for Molecular Medicine, Karolinska Hospital at Solna, S-171 76 Stockholm, Sweden
| |
Collapse
|
34
|
do Vale A, Cabanes D, Sousa S. Bacterial Toxins as Pathogen Weapons Against Phagocytes. Front Microbiol 2016; 7:42. [PMID: 26870008 PMCID: PMC4734073 DOI: 10.3389/fmicb.2016.00042] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 01/11/2016] [Indexed: 12/31/2022] Open
Abstract
Bacterial toxins are virulence factors that manipulate host cell functions and take over the control of vital processes of living organisms to favor microbial infection. Some toxins directly target innate immune cells, thereby annihilating a major branch of the host immune response. In this review we will focus on bacterial toxins that act from the extracellular milieu and hinder the function of macrophages and neutrophils. In particular, we will concentrate on toxins from Gram-positive and Gram-negative bacteria that manipulate cell signaling or induce cell death by either imposing direct damage to the host cells cytoplasmic membrane or enzymatically modifying key eukaryotic targets. Outcomes regarding pathogen dissemination, host damage and disease progression will be discussed.
Collapse
Affiliation(s)
- Ana do Vale
- Host Interaction and Response, Instituto de Investigação e Inovação em Saúde, Universidade do PortoPorto, Portugal; Group of Fish Immunology and Vaccinology, Instituto de Biologia Molecular e Celular, Universidade do PortoPorto, Portugal
| | - Didier Cabanes
- Host Interaction and Response, Instituto de Investigação e Inovação em Saúde, Universidade do PortoPorto, Portugal; Group of Molecular Microbiology, Instituto de Biologia Molecular e Celular, Universidade do PortoPorto, Portugal
| | - Sandra Sousa
- Host Interaction and Response, Instituto de Investigação e Inovação em Saúde, Universidade do PortoPorto, Portugal; Group of Molecular Microbiology, Instituto de Biologia Molecular e Celular, Universidade do PortoPorto, Portugal
| |
Collapse
|
35
|
Robinson RT, Orme IM, Cooper AM. The onset of adaptive immunity in the mouse model of tuberculosis and the factors that compromise its expression. Immunol Rev 2015; 264:46-59. [PMID: 25703551 DOI: 10.1111/imr.12259] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Mycobacterium tuberculosis (Mtb) has been evolving with its human host for over 50 000 years and is an exquisite manipulator of the human immune response. It induces both a strong inflammatory and a strong acquired immune response, and Mtb then actively regulates these responses to create an infectious lesion in the lung while maintaining a relatively ambulatory host. The CD4(+) T cell plays a critical yet contradictory role in this process by both controlling disseminated disease while promoting the development of the lesion in the lung that mediates transmission. In light of this manipulative relationship between Mtb and the human immune response, it is not surprising that our ability to vaccinate against tuberculosis (TB) has not been totally successful. To overcome the current impasse in vaccine development, we need to define the phenotype of CD4(+) T cells that mediate protection and to determine those bacterial and host factors that regulate the effective function of these cells. In this review, we describe the initiation and expression of T cells during TB as well as the fulminant inflammatory response that can compromise T-cell function and survival.
Collapse
Affiliation(s)
- Richard T Robinson
- Department of Microbiology and Molecular Genetics, Medical College of Wisconsin, Milwaukee, WI, USA
| | | | | |
Collapse
|
36
|
Malkin AD, Sheehan RP, Mathew S, Federspiel WJ, Redl H, Clermont G. A Neutrophil Phenotype Model for Extracorporeal Treatment of Sepsis. PLoS Comput Biol 2015; 11:e1004314. [PMID: 26468651 PMCID: PMC4607502 DOI: 10.1371/journal.pcbi.1004314] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 05/01/2015] [Indexed: 11/18/2022] Open
Abstract
Neutrophils play a central role in eliminating bacterial pathogens, but may also contribute to end-organ damage in sepsis. Interleukin-8 (IL-8), a key modulator of neutrophil function, signals through neutrophil specific surface receptors CXCR-1 and CXCR-2. In this study a mechanistic computational model was used to evaluate and deploy an extracorporeal sepsis treatment which modulates CXCR-1/2 levels. First, a simplified mechanistic computational model of IL-8 mediated activation of CXCR-1/2 receptors was developed, containing 16 ODEs and 43 parameters. Receptor level dynamics and systemic parameters were coupled with multiple neutrophil phenotypes to generate dynamic populations of activated neutrophils which reduce pathogen load, and/or primed neutrophils which cause adverse tissue damage when misdirected. The mathematical model was calibrated using experimental data from baboons administered a two-hour infusion of E coli and followed for a maximum of 28 days. Ensembles of parameters were generated using a Bayesian parallel tempering approach to produce model fits that could recreate experimental outcomes. Stepwise logistic regression identified seven model parameters as key determinants of mortality. Sensitivity analysis showed that parameters controlling the level of killer cell neutrophils affected the overall systemic damage of individuals. To evaluate rescue strategies and provide probabilistic predictions of their impact on mortality, time of onset, duration, and capture efficacy of an extracorporeal device that modulated neutrophil phenotype were explored. Our findings suggest that interventions aiming to modulate phenotypic composition are time sensitive. When introduced between 3–6 hours of infection for a 72 hour duration, the survivor population increased from 31% to 40–80%. Treatment efficacy quickly diminishes if not introduced within 15 hours of infection. Significant harm is possible with treatment durations ranging from 5–24 hours, which may reduce survival to 13%. In severe sepsis, an extracorporeal treatment which modulates CXCR-1/2 levels has therapeutic potential, but also potential for harm. Further development of the computational model will help guide optimal device development and determine which patient populations should be targeted by treatment. Sepsis occurs when a patient develops a whole body immune response due to infection. In this condition, white blood cells called neutrophils circulate in an active state, seeking and eliminating invading bacteria. However, when neutrophils are activated, healthy tissue is inadvertently targeted, leading to organ damage and potentially death. Even though sepsis kills millions worldwide, there are still no specific treatments approved in the United States. This may be due to the complexity and diversity of the body’s immune response, which can be managed well using computational modeling. We have developed a computational model to predict how different levels of neutrophil activation impact survival in an overactive inflammatory conditions. The model was utilized to assess the effectiveness of a simulated experimental sepsis treatment which modulates neutrophil populations and activity. This evaluation determined that treatment timing plays a critical role in therapeutic effectiveness. When utilized properly the treatment drastically improves survival, but there is also risk of causing patient harm when introduced at the wrong time. We intend for this computational model to support and guide further development of sepsis treatments and help translate these preliminary results from bench to bedside.
Collapse
Affiliation(s)
- Alexander D. Malkin
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- * E-mail:
| | - Robert P. Sheehan
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Shibin Mathew
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - William J. Federspiel
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Heinz Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in AUVA center, Vienna, Austria
| | - Gilles Clermont
- CRISMA Center, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| |
Collapse
|
37
|
Goossens PL, Tournier JN. Crossing of the epithelial barriers by Bacillus anthracis: the Known and the Unknown. Front Microbiol 2015; 6:1122. [PMID: 26500645 PMCID: PMC4598578 DOI: 10.3389/fmicb.2015.01122] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 09/28/2015] [Indexed: 12/15/2022] Open
Abstract
Anthrax, caused by Bacillus anthracis, a Gram-positive spore-forming bacterium, is initiated by the entry of spores into the host body. There are three types of human infection: cutaneous, inhalational, and gastrointestinal. For each form, B. anthracis spores need to cross the cutaneous, respiratory or digestive epithelial barriers, respectively, as a first obligate step to establish infection. Anthrax is a toxi-infection: an association of toxemia and rapidly spreading infection progressing to septicemia. The pathogenicity of Bacillus anthracis mainly depends on two toxins and a capsule. The capsule protects bacilli from the immune system, thus promoting systemic dissemination. The toxins alter host cell signaling, thereby paralyzing the immune response of the host and perturbing the endocrine and endothelial systems. In this review, we will mainly focus on the events and mechanisms leading to crossing of the respiratory epithelial barrier, as the majority of studies have addressed inhalational infection. We will discuss the critical gaps of knowledge that need to be addressed to gain a comprehensive view of the initial steps of inhalational anthrax. We will then discuss the few data available on B. anthracis crossing the cutaneous and digestive epithelia.
Collapse
Affiliation(s)
- Pierre L Goossens
- Pathogénie des Toxi-Infections Bactériennes, Institut Pasteur , Paris, France
| | - Jean-Nicolas Tournier
- Pathogénie des Toxi-Infections Bactériennes, Institut Pasteur , Paris, France ; Unité Interactions Hôte-Agents Pathogènes, Institut de Recherche Biomédicale des Armées , Brétigny-sur-Orge, France ; Ecole du Val-de-Grâce , Paris, France
| |
Collapse
|
38
|
Leliefeld PHC, Koenderman L, Pillay J. How Neutrophils Shape Adaptive Immune Responses. Front Immunol 2015; 6:471. [PMID: 26441976 PMCID: PMC4568410 DOI: 10.3389/fimmu.2015.00471] [Citation(s) in RCA: 167] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 08/31/2015] [Indexed: 01/19/2023] Open
Abstract
Neutrophils are classically considered as cells pivotal for the first line of defense against invading pathogens. In recent years, evidence has accumulated that they are also important in the orchestration of adaptive immunity. Neutrophils rapidly migrate in high numbers to sites of inflammation (e.g., infection, tissue damage, and cancer) and are subsequently able to migrate to draining lymph nodes (LNs). Both at the site of inflammation as well as in the LNs, neutrophils can engage with lymphocytes and antigen-presenting cells. This crosstalk occurs either directly via cell–cell contact or via mediators, such as proteases, cytokines, and radical oxygen species. In this review, we will discuss the current knowledge regarding locations and mechanisms of interaction between neutrophils and lymphocytes in the context of homeostasis and various pathological conditions. In addition, we will highlight the complexity of the microenvironment that is involved in the generation of suppressive or stimulatory neutrophil phenotypes.
Collapse
Affiliation(s)
- Pieter H C Leliefeld
- Department of Surgery, University Medical Center Utrecht , Utrecht , Netherlands ; Laboratory of Translational Immunology, University Medical Center Utrecht , Utrecht , Netherlands
| | - Leo Koenderman
- Laboratory of Translational Immunology, University Medical Center Utrecht , Utrecht , Netherlands ; Department of Respiratory Medicine, University Medical Center Utrecht , Utrecht , Netherlands
| | - Janesh Pillay
- Laboratory of Translational Immunology, University Medical Center Utrecht , Utrecht , Netherlands ; Department of Anaesthesiology and Critical Care, University Medical Center Utrecht , Utrecht , Netherlands
| |
Collapse
|
39
|
Rigby DA, Ferguson DJP, Johnson LA, Jackson DG. Neutrophils rapidly transit inflamed lymphatic vessel endothelium via integrin-dependent proteolysis and lipoxin-induced junctional retraction. J Leukoc Biol 2015. [PMID: 26216937 DOI: 10.1189/jlb.1hi0415-149r] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Neutrophils are the first leukocyte population to be recruited from the circulation following tissue injury or infection, where they play key roles in host defense. However, recent evidence indicates recruited neutrophils can also enter lymph and shape adaptive immune responses downstream in draining lymph nodes. At present, the cellular mechanisms regulating neutrophil entry to lymphatic vessels and migration to lymph nodes are largely unknown. Here, we have investigated these events in an in vivo mouse Mycobacterium bovis bacillus Calmette-Guérin vaccination model, ex vivo mouse dermal explants, and in vitro Transwell system comprising monolayers of primary human dermal lymphatic endothelial cells. We demonstrate that neutrophils are reliant on endothelial activation for adhesion, initially via E-selectin and subsequently, by integrin-mediated binding to ICAM-1 and VCAM-1, combined with CXCL8-dependent chemotaxis. Moreover, we reveal that integrin-mediated neutrophil adhesion plays a pivotal role in subsequent transmigration by focusing the action of matrix metalloproteinases and the 15-lipoxygenase-1-derived chemorepellent 12(S)-hydroxyeicosatetraenoic acid at neutrophil:endothelial contact sites to induce transient endothelial junctional retraction and rapid, selective neutrophil trafficking. These findings reveal an unexpectedly intimate collaboration between neutrophils and the lymphatic vessel endothelium, in which these phagocytic leukocytes act as pathfinders for their own transit during inflammation.
Collapse
Affiliation(s)
- David A Rigby
- *University of Oxford, Medical Research Council Human Immunology Unit, Weatherall Institute of Molecular Medicine, and Nuffield Department of Clinical Laboratory Sciences, John Radcliffe Hospital, Headington, Oxford, United Kingdom
| | - David J P Ferguson
- *University of Oxford, Medical Research Council Human Immunology Unit, Weatherall Institute of Molecular Medicine, and Nuffield Department of Clinical Laboratory Sciences, John Radcliffe Hospital, Headington, Oxford, United Kingdom
| | - Louise A Johnson
- *University of Oxford, Medical Research Council Human Immunology Unit, Weatherall Institute of Molecular Medicine, and Nuffield Department of Clinical Laboratory Sciences, John Radcliffe Hospital, Headington, Oxford, United Kingdom
| | - David G Jackson
- *University of Oxford, Medical Research Council Human Immunology Unit, Weatherall Institute of Molecular Medicine, and Nuffield Department of Clinical Laboratory Sciences, John Radcliffe Hospital, Headington, Oxford, United Kingdom
| |
Collapse
|
40
|
Falcão SAC, Weinkopff T, Hurrell BP, Celes FS, Curvelo RP, Prates DB, Barral A, Borges VM, Tacchini-Cottier F, de Oliveira CI. Exposure to Leishmania braziliensis triggers neutrophil activation and apoptosis. PLoS Negl Trop Dis 2015; 9:e0003601. [PMID: 25756874 PMCID: PMC4354905 DOI: 10.1371/journal.pntd.0003601] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Accepted: 02/06/2015] [Indexed: 11/21/2022] Open
Abstract
Background Neutrophils are the first line of defense against invading pathogens and are rapidly recruited to the sites of Leishmania inoculation. During Leishmania braziliensis infection, depletion of inflammatory cells significantly increases the parasite load whereas co-inoculation of neutrophils plus L. braziliensis had an opposite effect. Moreover, the co-culture of infected macrophages and neutrophils also induced parasite killing leading us to ask how neutrophils alone respond to an L. braziliensis exposure. Herein we focused on understanding the interaction between neutrophils and L. braziliensis, exploring cell activation and apoptotic fate. Methods and Findings Inoculation of serum-opsonized L. braziliensis promastigotes in mice induced neutrophil accumulation in vivo, peaking at 24 h. In vitro, exposure of thyoglycollate-elicited inflammatory or bone marrow neutrophils to L. braziliensis modulated the expression of surface molecules such as CD18 and CD62L, and induced the oxidative burst. Using mCherry-expressing L. braziliensis, we determined that such effects were mainly observed in infected and not in bystander cells. Neutrophil activation following contact with L. braziliensis was also confirmed by the release of TNF-α and neutrophil elastase. Lastly, neutrophils infected with L. braziliensis but not with L. major displayed markers of early apoptosis. Conclusions We show that L. braziliensis induces neutrophil recruitment in vivo and that neutrophils exposed to the parasite in vitro respond through activation and release of inflammatory mediators. This outcome may impact on parasite elimination, particularly at the early stages of infection. Leishmania is the parasite responsible for the disease leishmaniasis, present in all continents. Leishmania parasites are spread through infected sand-flies and, during transmission into the vertebrate host, neutrophils are among the first cells to arrive at the infection site. Since neutrophils are key players at the frontline of defense against invading organisms, we investigated their response to Leishmania braziliensis. Importantly, L. braziliensis causes both Cutaneous and Mucocutaneous Leishmaniasis, two clinical manifestations characterized by their chronic development and by the presence of skin lesions with tissue destruction. Upon inoculation of mice with L. braziliensis, neutrophils rapidly arrive at the site of infection. We then observed that culture of mouse neutrophils with L. braziliensis induced the expression of adhesion molecules, production of Reactive Oxygen Species and secretion of elastase and TNF-α, two important inflammatory mediators. Also, infection with L. braziliensis induced neutrophil apoptosis, a cell death mechanism key for regulating inflammation. Our results show that neutrophils respond to presence of the L. braziliensis parasites by becoming activated and undergoing apoptosis. We suggest that this outcome modifies the local environment at the site of parasite inoculation and thus contributes with parasite killing in the infected host.
Collapse
Affiliation(s)
| | - Tiffany Weinkopff
- Department of Biochemistry, and WHO-Immunology Research and Training Center, University of Lausanne, Epalinges, Switzerland
| | - Benjamin P. Hurrell
- Department of Biochemistry, and WHO-Immunology Research and Training Center, University of Lausanne, Epalinges, Switzerland
| | - Fabiana S. Celes
- Centro de Pesquisas Gonçalo Moniz, FIOCRUZ, Salvador, Bahia, Brazil
| | | | - Deboraci B. Prates
- Departamento de Biomorfologia, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - Aldina Barral
- Centro de Pesquisas Gonçalo Moniz, FIOCRUZ, Salvador, Bahia, Brazil
- Instituto de Investigação em Imunologia, Salvador, Bahia, Brazil
| | - Valeria M. Borges
- Centro de Pesquisas Gonçalo Moniz, FIOCRUZ, Salvador, Bahia, Brazil
- Instituto de Investigação em Imunologia, Salvador, Bahia, Brazil
| | - Fabienne Tacchini-Cottier
- Department of Biochemistry, and WHO-Immunology Research and Training Center, University of Lausanne, Epalinges, Switzerland
| | - Camila I. de Oliveira
- Centro de Pesquisas Gonçalo Moniz, FIOCRUZ, Salvador, Bahia, Brazil
- Instituto de Investigação em Imunologia, Salvador, Bahia, Brazil
- * E-mail:
| |
Collapse
|
41
|
Neutrophil migration in the activation of the innate immune response to different Flavobacterium psychrophilum vaccines in zebrafish (Danio rerio). J Immunol Res 2015; 2015:515187. [PMID: 25815347 PMCID: PMC4359811 DOI: 10.1155/2015/515187] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 01/16/2015] [Accepted: 01/19/2015] [Indexed: 12/02/2022] Open
Abstract
Flavobacterium psychrophilum is a Gram-negative bacterium, responsible for the bacterial cold-water disease and the rainbow trout fry syndrome in freshwater salmonid fish. At present, there is only one commercial vaccine in Chile, made with two Chilean F. psychrophilum isolates and another licensed in Europe. The present study analyzed neutrophil migration, as a marker of innate immune activation, in zebrafish (Danio rerio) in response to different F. psychrophilum bath vaccines, which is the first step in evaluating vaccine effectiveness and efficiency in fish. Results indicated that bacterins of the LM-02-Fp isolate were more immunogenic than those from the LM-13-Fp isolate. However, no differences were observed between the same bacteria inactivated by either formaldehyde or heat. Importantly, the same vaccine formulation without an adjuvant only triggered a mild neutrophil migration compared to the complete vaccine. Observations also found that, after a year of storage at 4°C, the activation of the innate immune system by the different vaccines was considerably decreased. Finally, new vaccine formulations prepared with heat and formaldehyde inactivated LM-02-Fp were significantly more efficient than the available commercial vaccine in regard to stimulating the innate immune system.
Collapse
|
42
|
Pérez-Rosés R, Risco E, Vila R, Peñalver P, Cañigueral S. Effect of some essential oils on phagocytosis and complement system activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:1496-1504. [PMID: 25599399 DOI: 10.1021/jf504761m] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The aim of the present study was to investigate the in vitro activity of 15 essential oils, 4 essential oil fractions, and 3 pure compounds (thymol, carvacrol, and eugenol) on phagocytosis by human neutrophils and on complement system. Samples were characterized by GC and GC-MS. Most of the oils (nutmeg, clove, niaouli, tea tree, bay laurel, lemon, red thyme, ginger), nutmeg terpenes, eugenol, and carvacrol showed mild to moderate inhibition of phagocytosis (25-40% inhibition at doses ranging from 40 to 60 μg/mL); highest inhibitory activity was found for thymol (72% at 56 μg/mL), whereas the mixture of bornyl and isobornyl acetates showed a mild stimulating activity (21% at 56 μg/mL). All samples were inactive in the alternative pathway of complement system, whereas on classical pathway, clove oil, eugenol, palmarosa oil, red thyme oil, tarragon oil, and carvacrol showed the highest activity, with IC50 values ranging from 65 to 78 μg/mL.
Collapse
Affiliation(s)
- Renato Pérez-Rosés
- Unitat de Farmacologia i Farmacognòsia, Facultat de Farmàcia, Universitat de Barcelona , Avinguda Joan XXIII s/n, E-08028 Barcelona, Spain
| | | | | | | | | |
Collapse
|
43
|
Ackerman ME, Alter G. Opportunities to exploit non-neutralizing HIV-specific antibody activity. Curr HIV Res 2014; 11:365-77. [PMID: 24191934 DOI: 10.2174/1570162x113116660058] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 07/16/2013] [Accepted: 08/03/2013] [Indexed: 12/22/2022]
Abstract
Antibodies act as a nexus between innate and adaptive immunity: they provide a means to engage a spectrum of innate immune effector cells in order to clear viral particles and infected cells and prime antigen presentation. This functional landscape is remarkably complex, and depends on antibody isotype, subclass, and glycosylation; the expression levels and patterns of a suite of Fc receptors with both complementary and opposing activities; and a host of innate immune cells capable of differential responses to opsonized particles and present at different sites. In vivo, even neutralizing antibodies rely on their ability to act as molecular beacons and recruit innate immune effector cells in order to provide protection, and results from both human and macaque studies have implicated these effector functions in vaccinemediated protection. Thus, while enhancing effector function is a tractable handle for potentiating antibody-mediated protection from HIV infection, success will depend critically on leveraging understanding of the means by which antibodies with specific functional profiles could be elicited, which effector functions could provide optimal protection, and perhaps most critically, how to efficiently recruit the innate effector cells present at sites of infection.
Collapse
Affiliation(s)
- Margaret E Ackerman
- Ragon Institute of MGH, MIT, and Harvard University, Cambridge, MA 02139, USA.
| | | |
Collapse
|
44
|
Affiliation(s)
- Jing Wang
- Department of Physiology and Pharmacology; University of Calgary; Calgary Alberta Canada
- Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases; University of Calgary; Calgary Alberta Canada
- Department of Immunochemistry; Research Institute for Microbial Diseases; Osaka University; Osaka Japan
| | - Hisashi Arase
- Department of Immunochemistry; Research Institute for Microbial Diseases; Osaka University; Osaka Japan
- Laboratory of Immunochemistry; World Premier International Immunology Frontier Research Center; Osaka University; Osaka Japan
- Core Research for Evolutional Science and Technology; Japan Science and Technology Agency; Saitama Japan
| |
Collapse
|
45
|
Li Y, Xu W, Jiang Z, Gao Y, Pang Y, Li L, OuYang L, Zhang L, Liu Z, Wang Y, Xiao Y, Huang X. Neutropenia and invasive fungal infection in patients with hematological malignancies treated with chemotherapy: a multicenter, prospective, non-interventional study in China. Tumour Biol 2014; 35:5869-76. [PMID: 24664582 DOI: 10.1007/s13277-014-1777-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 02/18/2014] [Indexed: 01/15/2023] Open
Abstract
In this study, we explored the relationship between neutropenia (absolute neutrophil count (ANC) <1,500/mm(3)) and invasive fungal infection (IFI) in Chinese patients who had hematological malignancies treated with chemotherapy. We conducted a multicenter, prospective, non-interventional study of consecutive patients with hematological malignancies undergoing chemotherapy in China and determined clinical characteristics of patients who developed neutropenia and IFI. The results indicated that for the 2,177 neutropenic patients, 88 (4.0 %) were diagnosed with IFI. We found that a high risk of IFI (P<0.05) is associated with male gender, non-remission of the primary disease, use of two or more broad-spectrum antibiotics, treatment with parenteral nutrition, presence of cardiovascular disease, history of IFI, and neutropenia. When the ANC was less than 1,000, 1,000∼500, 500∼100, and <100/mm(3), the incidence of IFI was 0.5, 5.2, 3.9, and 4.7 %, respectively (ANC>1,000/mm(3) versus other groups, P<0.001). When the ANC was less than 1,000, 500, or 100/mm(3) for 10 days or more, the incidence of IFI was 3.2 versus 6.1 % (P=0.0052), 3.5 versus 7.1 % (P=0.0021), and 3.1 versus 10.0 % (P<0.001). When the ANC was less than 100/mm(3), taking antifungal prophylaxis reduced the incidence of IFI (P<0.05). The IFI-attributable mortality rate was 11.7 %. In conclusion, Chinese patients with IFI, severe and prolonged neutropenia increases the incidence of IFI. The incidence of IFI associated with neutropenia was reduced when antifungal prophylaxis was given. IFI was associated with a significantly increased high mortality rate in hematological malignancy patients with neutropenia.
Collapse
Affiliation(s)
- Yonghua Li
- Department of Hematology, Guangzhou General Hospital of Guangzhou Military Command, 111 Liuhua Rd., Guangzhou, 510010, People's Republic of China
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Luna-Gomes T, Filardy AA, Rocha JDB, Decote-Ricardo D, LaRocque-de-Freitas IF, Morrot A, Bozza PT, Castro-Faria-Neto HC, DosReis GA, Nunes MP, Freire-de-Lima CG. Neutrophils increase or reduce parasite burden in Trypanosoma cruzi-infected macrophages, depending on host strain: role of neutrophil elastase. PLoS One 2014; 9:e90582. [PMID: 24599360 PMCID: PMC3944110 DOI: 10.1371/journal.pone.0090582] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Accepted: 01/30/2014] [Indexed: 12/14/2022] Open
Abstract
Neutrophils are involved in the initial steps of most responses to pathogens and are essential components of the innate immune response. Due to the ability to produce and release various soluble mediators, neutrophils may participate in the regulation of the inflammatory response. Little is known about the role of neutrophils during protozoan infections including infection by Trypanosoma cruzi. In the present study we investigated the importance of inflammatory neutrophils on macrophage activation and T. cruzi replication in vitro, in cells obtained from BALB/c mice and C57Bl/6 mice. Co-cultures of BALB/c apoptotic or live neutrophils with infected peritoneal macrophages resulted in increased replication of the parasites and in the production of TGF-β and PGE2. The treatment with anti-TGF-β neutralizing antibody and COX inhibitor blocked the parasite replication in vitro. On the other hand, co-cultures of T. cruzi infected macrophages with live neutrophils isolated from C57BL/6 mice resulted in decreased number of trypomastigotes in culture and increased production of TNF-α and NO. The addition of anti-TNF-α neutralizing antibody or elastase inhibitor resulted in the abolishment of macrophage microbicidal effect and increased parasite replication. Addition of elastase to infected macrophages reduced the replication of the parasites, and on the other hand, addition of a selective inhibitor of iNOS increased parasite growth, suggesting the role of NO in this system. Our findings reveal that neutrophils may regulate T. cruzi experimental infection and determine susceptibility and resistance to infection.
Collapse
Affiliation(s)
- Tatiana Luna-Gomes
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alessandra A. Filardy
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Juliana Dutra B. Rocha
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Debora Decote-Ricardo
- Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro, Seropédica, Rio de Janeiro, Brazil
| | | | - Alexandre Morrot
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - George A. DosReis
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Célio G. Freire-de-Lima
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- * E-mail:
| |
Collapse
|
47
|
Channabasappa S, Stewart S, Caldwell S, Carr A, Singh B. Retinoic acid induces apoptosis in activated canine neutrophils. Vet Immunol Immunopathol 2014; 157:175-81. [PMID: 24359944 DOI: 10.1016/j.vetimm.2013.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 10/30/2013] [Accepted: 11/18/2013] [Indexed: 11/18/2022]
Abstract
Activated neutrophils live longer, produce toxic metabolites and cause considerable tissue injury, which is central to the pathogenesis of many inflammatory conditions. Retinoids are a class of lipophilic compounds with anti-inflammatory effects. We examined the effect of retinoic acid on apoptosis in normal and activated neutrophils. Our results showed that treatment with 1 μg/ml Escherichia coli lipopolysaccharide (LPS) for 12 and 36 h delayed the spontaneous neutrophil apoptosis compared to untreated cells. But exposure of LPS-treated cells to retinoic acid (1 and 5 μM) abolished the inhibitory effects of LPS on neutrophil apoptosis in a concentration-dependent manner based on annexin V staining, Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay, light and electron microscopy. These results show that retinoic acid increases apoptosis in activated canine neutrophils and this effect could enhance the resolution of inflammation in vivo.
Collapse
Affiliation(s)
| | - Sarah Stewart
- Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK S7N5B4, Canada
| | - Sarah Caldwell
- Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK S7N5B4, Canada
| | - Anthony Carr
- Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK S7N5B4, Canada
| | - Baljit Singh
- Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, SK S7N5B4, Canada.
| |
Collapse
|
48
|
Calpain-1 inhibitors for selective treatment of rheumatoid arthritis: what is the future? Future Med Chem 2013; 5:2057-74. [DOI: 10.4155/fmc.13.172] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Effective small-molecule treatment of inflammatory diseases remains an unmet need in medicine. Current treatments are either limited in effectiveness or invasive. The latest biologics prevent influx of inflammatory cells to damaged tissue. Calpain-1 is a calcium-activated cysteine protease that plays an important role in neutrophil motility. It is, therefore, a potential target for intervention in inflammatory disease. Many inhibitors of calpains have been developed but most are unselective and so unsuitable for drug use. However, recent series of α-mercaptoacrylate inhibitors target regulatory domains of calpain-1 and are much more specific. These compounds are effective in impairing the cell spreading mechanism of neutrophils in vitro and raise the possibility of treating rheumatoid arthritis with a pill; however, challenges still remain. Improved bioavailability is needed and solution of their precise mode of action should prompt the development of specific calpain-1 screens for novel classes of inhibitors.
Collapse
|
49
|
Araújo VC, Demasi APD, Soares AB, Passador-Santos F, Napimoga MH, Martinez EF, Freitas NS, Araújo NS. Neutrophils in oral paracoccidioidomycosis and the involvement of Nrf2. PLoS One 2013; 8:e76976. [PMID: 24204715 PMCID: PMC3811996 DOI: 10.1371/journal.pone.0076976] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 08/28/2013] [Indexed: 11/22/2022] Open
Abstract
Neutrophils have been implicated in granuloma formation in several infectious diseases, in addition to their main phagocytic and pathogen destruction role. It has been demonstrated that Nrf2 regulates antioxidant protection in neutrophils, attenuating inflammation without compromising the hosts bacterial defense. In this study, we analyzed the presence of neutrophils in Paracoccidioides brasiliensis mycosis (PCM), as well as the immunoexpression of Nrf2. Thirty-nine cases of oral PCM were classified according to quantity of fungi and to the presence of loose or well-organized granulomas and microabscesses. An Nrf2 antibody was used for immunohistochemical analysis. The results showed that neutrophils are present in microabscesses and loose granulomas, but were absent in structured granulomas. A greater quantity of fungi was shown in cases with only loose granulomas when compared to loose and well organized granulomas. Nrf2 was observed in the nuclei of neutrophils of loose granulomas and abscesses, with its expression in loose granulomas maintained despite the additional presence of well organized granulomas in the same specimen. This study suggests that neutrophils participate in P. brasiliensis granuloma formation and that Nrf2 has a possible role in neutrophil survival, via modulation of the inflammatory response.
Collapse
Affiliation(s)
- Vera Cavalcanti Araújo
- Department of Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil
- * E-mail:
| | - Ana Paula Dias Demasi
- Department of Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil
| | - Andresa Borges Soares
- Department of Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil
| | - Fabrício Passador-Santos
- Department of Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil
| | - Marcelo Henrique Napimoga
- Department of Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil
| | | | - Nadir Severina Freitas
- Department of Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil
| | - Ney Soares Araújo
- Department of Pathology, São Leopoldo Mandic Institute and Research Center, Campinas, São Paulo, Brazil
| |
Collapse
|
50
|
Wang J, Zhou X, Pan B, Yang L, Yin X, Xu B, Zhao D. Investigation of the effect of Mycobacterium bovis infection on bovine neutrophils functions. Tuberculosis (Edinb) 2013; 93:675-87. [PMID: 23988278 DOI: 10.1016/j.tube.2013.07.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 07/06/2013] [Accepted: 07/13/2013] [Indexed: 01/15/2023]
Abstract
Bovine tuberculosis is a disease in cattle caused by infection with Mycobacterium bovis. The disease has posed significant economic losses and remains a public health hazard worldwide. Interactions between M. bovis and bovine macrophages have been extensively characterized in various studies, while similar analyses in neutrophils, which are one of the other types of white blood cells in mammals, were often overlooked. Neutrophils provide defense against all microbes and can present a diverse collection of antimicrobial molecules, which play an important role in the control of tuberculosis progression. Much of the available data about the involvement of neutrophils in the killing M. bovis is controversial. In this study, we assessed the effect of in vitro infection with M. bovis on some parameters of neutrophils functions including phenotypic changes, apoptosis rate and inflammatory cytokines production. Our results demonstrated that phagocytosis of M. bovis activated and enhanced bovine neutrophils functions as well as initialed their defense mechanism, but failed to eliminate the mycobacteria. Moreover, autophagy might get involved in the defense infection process functioning as a protective mechanism, and inducible-autophagy by lipopolysaccharides stimulation and starvation treatment could efficiently reverse the inability of neutrophils for killing M. bovis, suggesting a potential target for anti-mycobacterial drug-therapy.
Collapse
Affiliation(s)
- Jin Wang
- State Key Lab of Agrobiotechnology, National Animal Transmissible Spongiform Encephalopathy Laboratory, College of Veterinary Medicine, China Agricultural University, Beijing 100193, PR China; The State Key Lab of Agrobiotechnology, Key Lab of Animal Epidemiology and Zoonosis, Ministry of Agriculture, National TSE Lab, Beijing 100193, PR China; College of Veterinary Medicine, China Agricultural University, Beijing 100193, PR China.
| | | | | | | | | | | | | |
Collapse
|