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Toychiev A, Gafner N, Belotserkovets V, Sekler D, Tashpulatova S, Osipova S. Impact of Ascaris lumbricoides infection on the development of chronic pulmonary aspergillosis in patients with COPD. Trop Doct 2024; 54:149-156. [PMID: 38291709 DOI: 10.1177/00494755241226488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
The aetiopathogenesis of chronic obstructive pulmonary disease (COPD) remains unclear. The aim of our study was to determine the possible influence of Ascaris lumbricoides on the development of chronic pulmonary aspergillosis (CPA) in patients with COPD. The prevalence of A. lumbricoides in patients with COPD with CPA (19.05%) was significantly higher than that in those without (9.20%) and controls (4.9%) (p < 0.05). Trends in levels of Interleukin-1β and of tumour necrosis factor α suggest ascariasis increases susceptibility to Aspergillus sp. in patients with COPD and can be considered an additional risk factor for CPA.
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Affiliation(s)
- Abdurakhim Toychiev
- Postdoctoral Researcher, Department of Immunology of Parasitic and Fungal Diseases, Republican Specialized Research and Practical Medical Center of Epidemiology, Microbiology, Infectious and Parasitic Diseases, Tashkent, Uzbekistan
| | - Natalya Gafner
- Pulmonologist, Department of Therapy, Republican Specialized Scientific and Practical Medical Center of Tuberculosis and Pulmonology, Tashkent, Uzbekistan
| | - Vera Belotserkovets
- Pulmonologist, Department of Therapy, Republican Specialized Scientific and Practical Medical Center of Tuberculosis and Pulmonology, Tashkent, Uzbekistan
| | - Dildora Sekler
- Senior Researcher, Department of Immunology of Parasitic and Fungal Diseases, Republican Specialized Research and Practical Medical Center of Epidemiology, Microbiology, Infectious and Parasitic Diseases, Tashkent, Uzbekistan
| | - Shakhnoza Tashpulatova
- Associate Professor, Department of Infectious and Child Infectious Diseases, Tashkent Medical Academy, Tashkent, Uzbekistan
| | - Svetlana Osipova
- Principal Investigator, Department of Immunology of Parasitic and Fungal Diseases, Republican Specialized Research and Practical Medical Center of Epidemiology, Microbiology, Infectious and Parasitic Diseases, Tashkent, Uzbekistan
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Chen H, Cao Z, Liu M, Diamond MS, Jin X. The impact of helminth-induced immunity on infection with bacteria or viruses. Vet Res 2023; 54:87. [PMID: 37789420 PMCID: PMC10548622 DOI: 10.1186/s13567-023-01216-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 08/21/2023] [Indexed: 10/05/2023] Open
Abstract
Different human and animal pathogens trigger distinct immune responses in their hosts. The infection of bacteria or viruses can trigger type I pro-inflammatory immune responses (e.g., IFN-γ, TNF-α, TH1 cells), whereas infection by helminths typically elicits a type II host resistance and tolerizing immune response (e.g., IL-4, IL-5, IL-13, TH2 cells). In some respects, the type I and II immune responses induced by these different classes of pathogens are antagonistic. Indeed, recent studies indicate that infection by helminths differentially shapes the response and outcome of subsequent infection by viruses and bacteria. In this review, we summarize the current knowledge on how helminth infections influence concurrent or subsequent microbial infections and also discuss the implications for helminth-mediated immunity on the outcome of SARS-CoV-2 disease.
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Affiliation(s)
- Hong Chen
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Zengguo Cao
- State Key Laboratory of Virology, Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Mingyuan Liu
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
| | - Michael S Diamond
- Departments of Medicine, Molecular Microbiology, Pathology, and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Xuemin Jin
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China.
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3
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Jermakow N, Skarżyńska W, Lewandowska K, Kiernozek E, Goździk K, Mietelska-Porowska A, Drela N, Wojda U, Doligalska M. Modulation of LPS-Induced Neurodegeneration by Intestinal Helminth Infection in Ageing Mice. Int J Mol Sci 2023; 24:13994. [PMID: 37762297 PMCID: PMC10530578 DOI: 10.3390/ijms241813994] [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: 07/27/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Parasitic helminths induce a transient, short-term inflammation at the beginning of infection, but in persistent infection may suppress the systemic immune response by enhancing the activity of regulatory M2 macrophages. The aim of the study was to determine how nematode infection affects age-related neuroinflammation, especially macrophages in the nervous tissue. Here, intraperitoneal LPS-induced systemic inflammation resulting in brain neurodegeneration was enhanced by prolonged Heligmosomoides polygyrus infection in C57BL/6 mice. The changes in the brain coincided with the increase in M1 macrophages, reduced survivin level, enhanced APP and GFAP expression, chitin-like chains deposition in the brain and deterioration behaviour manifestations. These changes were also observed in transgenic C57BL/6 mice predisposed to develop neurodegeneration typical for Alzheimer's disease in response to pathogenic stimuli. Interestingly, in mice infected with the nematode only, the greater M2 macrophage population resulted in better results in the forced swim test. Given the growing burden of neurodegenerative diseases, understanding such interactive associations can have significant implications for ageing health strategies and disease monitoring.
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Affiliation(s)
- Natalia Jermakow
- Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warszawa, Poland; (N.J.); (W.S.); (E.K.); (K.G.); (N.D.)
| | - Weronika Skarżyńska
- Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warszawa, Poland; (N.J.); (W.S.); (E.K.); (K.G.); (N.D.)
| | - Katarzyna Lewandowska
- Faculty of Chemistry, Nicolaus Copernicus in Toruń, Gagarina 7, 87-100 Toruń, Poland;
| | - Ewelina Kiernozek
- Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warszawa, Poland; (N.J.); (W.S.); (E.K.); (K.G.); (N.D.)
| | - Katarzyna Goździk
- Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warszawa, Poland; (N.J.); (W.S.); (E.K.); (K.G.); (N.D.)
| | - Anna Mietelska-Porowska
- Laboratory of Preclinical Testing of Higher Standard, Nencki Institute of Experimental Biology, Ludwika Pasteura 3, 02-093 Warszawa, Poland; (A.M.-P.); (U.W.)
| | - Nadzieja Drela
- Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warszawa, Poland; (N.J.); (W.S.); (E.K.); (K.G.); (N.D.)
| | - Urszula Wojda
- Laboratory of Preclinical Testing of Higher Standard, Nencki Institute of Experimental Biology, Ludwika Pasteura 3, 02-093 Warszawa, Poland; (A.M.-P.); (U.W.)
| | - Maria Doligalska
- Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096 Warszawa, Poland; (N.J.); (W.S.); (E.K.); (K.G.); (N.D.)
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Rovira-Diaz E, El-Naccache DW, Reyes J, Zhao Y, Nasuhidehnavi A, Chen F, Gause WC, Yap GS. The Impact of Helminth Coinfection on Innate and Adaptive Immune Resistance and Disease Tolerance during Toxoplasmosis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:2160-2171. [PMID: 36426972 PMCID: PMC10065986 DOI: 10.4049/jimmunol.2200504] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 09/23/2022] [Indexed: 01/04/2023]
Abstract
More than 2 billion people worldwide are infected with helminths. Thus, it is possible for individuals to experience concomitant infection with helminth and intracellular microbes. Although the helminth-induced type 2 response can suppress type 1 proinflammatory responses required for the immunity against intracellular pathogens in the context of a coinfection, conflicting evidence suggest that helminth infection can enhance antimicrobial immunity. Using a coinfection model with the intestinal helminth Heligmosomoides polygyrus followed by infection with Toxoplasma gondii in Mus Musculus, we showed that the complex and dynamic effect of helminth infection is highly suppressive during the innate phase (days 0-3) of T. gondii infection and less stringent during the acute phase (d10). Helminth coinfection had a strong suppressive effect on the neutrophil, monocytic, and early IFN-γ/IL-12 responses. The IFN-γ response was later restored by compensatory production from T cells despite decreased effector differentiation of T. gondii-specific CD8 T cells. In accordance with the attenuated IFN-γ response, parasite loads were elevated during the acute phase (d10) of T. gondii infection but were transiently controlled by the compensatory T cell response. Unexpectedly, 40% of helminth-coinfected mice exhibited a sustained weight loss phenotype during the postacute phase (d14-18) that was not associated with T. gondii outgrowth, indicating that coinfection led to decreased disease tolerance during T. gondii infection. Our work uncovers the dynamic nature of the helminth immunomodulatory effects on concomitant infections or immune responses and unveils a loss of disease tolerance phenotype triggered by coinfection with intestinal helminth.
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Affiliation(s)
- Eliezer Rovira-Diaz
- Department of Medicine and Center for Immunity and Inflammation, New Jersey Medical School, Rutgers University, Newark, NJ 07101
| | - Darine W. El-Naccache
- Department of Medicine and Center for Immunity and Inflammation, New Jersey Medical School, Rutgers University, Newark, NJ 07101
| | - Jojo Reyes
- Department of Medicine and Center for Immunity and Inflammation, New Jersey Medical School, Rutgers University, Newark, NJ 07101
| | - Yanlin Zhao
- Department of Medicine and Center for Immunity and Inflammation, New Jersey Medical School, Rutgers University, Newark, NJ 07101
| | - Azadeh Nasuhidehnavi
- Department of Medicine and Center for Immunity and Inflammation, New Jersey Medical School, Rutgers University, Newark, NJ 07101
| | - Fei Chen
- Department of Medicine and Center for Immunity and Inflammation, New Jersey Medical School, Rutgers University, Newark, NJ 07101
| | - William C. Gause
- Department of Medicine and Center for Immunity and Inflammation, New Jersey Medical School, Rutgers University, Newark, NJ 07101
| | - George S. Yap
- Department of Medicine and Center for Immunity and Inflammation, New Jersey Medical School, Rutgers University, Newark, NJ 07101
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Nguyen NTD, Pathak AK, Cattadori IM. Gastrointestinal helminths increase Bordetella bronchiseptica shedding and host variation in supershedding. eLife 2022; 11:70347. [DOI: 10.7554/elife.70347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 10/11/2022] [Indexed: 11/09/2022] Open
Abstract
Co-infected hosts, individuals that carry more than one infectious agent at any one time, have been suggested to facilitate pathogen transmission, including the emergence of supershedding events. However, how the host immune response mediates the interactions between co-infecting pathogens and how these affect the dynamics of shedding remains largely unclear. We used laboratory experiments and a modeling approach to examine temporal changes in the shedding of the respiratory bacterium Bordetella bronchiseptica in rabbits with one or two gastrointestinal helminth species. Experimental data showed that rabbits co-infected with one or both helminths shed significantly more B. bronchiseptica, by direct contact with an agar petri dish, than rabbits with bacteria alone. Co-infected hosts generated supershedding events of higher intensity and more frequently than hosts with no helminths. To explain this variation in shedding an infection-immune model was developed and fitted to rabbits of each group. Simulations suggested that differences in the magnitude and duration of shedding could be explained by the effect of the two helminths on the relative contribution of neutrophils and specific IgA and IgG to B. bronchiseptica neutralization in the respiratory tract. However, the interactions between infection and immune response at the scale of analysis that we used could not capture the rapid variation in the intensity of shedding of every rabbit. We suggest that fast and local changes at the level of respiratory tissue probably played a more important role. This study indicates that co-infected hosts are important source of variation in shedding, and provides a quantitative explanation into the role of helminths to the dynamics of respiratory bacterial infections.
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Affiliation(s)
- Nhat TD Nguyen
- Center for Infectious Disease Dynamics, The Pennsylvania State University
- Department of Biology, The Pennsylvania State University
| | - Ashutosh K Pathak
- Center for Infectious Disease Dynamics, The Pennsylvania State University
- Department of Biology, The Pennsylvania State University
- Department of Infectious Diseases, University of Georgia
| | - Isabella M Cattadori
- Center for Infectious Disease Dynamics, The Pennsylvania State University
- Department of Biology, The Pennsylvania State University
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Long SR, Shang WX, Jiang M, Li JF, Liu RD, Wang ZQ, Sun H, Cui J. Preexisting Trichinella spiralis infection attenuates the severity of Pseudomonas aeruginosa-induced pneumonia. PLoS Negl Trop Dis 2022; 16:e0010395. [PMID: 35500031 PMCID: PMC9098000 DOI: 10.1371/journal.pntd.0010395] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 05/12/2022] [Accepted: 04/05/2022] [Indexed: 11/19/2022] Open
Abstract
Background A range of helminth species involve the migration of developing larvae through the lung and establish chronic infections in the host that include potent immune regulatory effects. Trichinella spiralis is one of the most successful parasitic symbiotes. After released by intestinal female adult worms, newborn larvae of T. spiralis travel through the circulatory system to the lung and finally reach skeletal muscle cells. As unique inflammation modulator of intracellular parasitism, T. spiralis shows improved responses to autoimmune disease and viral pulmonary inflammation by exerting immunomodulatory effects on innate and adaptive immune cells. Methodology/Principal findings C57BL/6 mice were divided into four groups: uninfected; helminth- T. spiralis infected; P. aeruginosa infected; and co-infected. Mice infected with T. spiralis were incubated for 6 weeks, followed by P. aeruginosa intranasal inoculation. Bronchial alveolar lavage fluid, blood and lung samples were analyzed. We found that T. spiralis induced Th2 response in the mouse lung tissue, increased lung CD4+ T cells, GATA3, IL-4, IL-5 and IL-13 expression. Pre-existing T. spiralis infection decreased lung neutrophil recruitment, inflammatory mediator IL-1β and IL-6 expression and chemokine CXCL1 and CXCL2 release during P. aeruginosa- pneumonia. Furthermore, T. spiralis co-infected mice exhibited significantly more eosinophils at 6 hours following P. aeruginosa infection, ameliorated pulmonary inflammation and improved survival in P. aeruginosa pneumonia. Conclusions These findings indicate that a prior infection with T. spiralis ameliorates experimental pulmonary inflammation and improves survival in P. aeruginosa pneumonia through a Th2-type response with eosinophils. Helminth infections elicit type 2 immunity, which influences host immune responses to additional threats, such as allergens, metabolic disease and other pathogens. Pseudomonas aeruginosa is one of the most common gram-negative pathogens causing pneumonia in immunocompromised patients. The mortality rate of ventilator associated pneumonia caused by P. aeruginosa is higher than that due to other pathogens. Trichinella spiralis is a zoonotic nematode of intracellular parasitism that infects a wide range of vertebrate hosts, including humans. There is a lung migratory phase in the life cycle of T. spiralis. In this study, we found that T. spiralis induced Th2 response in the mouse lung tissue. T. spiralis co-infected mice exhibited significantly more eosinophils and less neutrophils at 6 hours following P. aeruginosa infection, ameliorated pulmonary inflammation and improved survival in P. aeruginosa pneumonia. These findings suggest a pre-existing chronic helminth with a lung migration phase infection promotes the survival of bacterial airway co-infected host.
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Affiliation(s)
- Shao Rong Long
- Department of Parasitology, Medical College of Zhengzhou University, Zhengzhou, China
| | - Wen Xuan Shang
- Department of Parasitology, Medical College of Zhengzhou University, Zhengzhou, China
- Biology, School of Life Scence, Zhengzhou University, Zhengzhou, China
| | - Miao Jiang
- Department of Parasitology, Medical College of Zhengzhou University, Zhengzhou, China
| | - Jing Fei Li
- Department of Parasitology, Medical College of Zhengzhou University, Zhengzhou, China
| | - Ruo Dan Liu
- Department of Parasitology, Medical College of Zhengzhou University, Zhengzhou, China
| | - Zhong Quan Wang
- Department of Parasitology, Medical College of Zhengzhou University, Zhengzhou, China
| | - Hualei Sun
- Department of Nutrition, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- * E-mail: (HS); (JC)
| | - Jing Cui
- Department of Parasitology, Medical College of Zhengzhou University, Zhengzhou, China
- * E-mail: (HS); (JC)
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Ianiro G, Iorio A, Porcari S, Masucci L, Sanguinetti M, Perno CF, Gasbarrini A, Putignani L, Cammarota G. How the gut parasitome affects human health. Therap Adv Gastroenterol 2022; 15:17562848221091524. [PMID: 35509426 PMCID: PMC9058362 DOI: 10.1177/17562848221091524] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 02/23/2022] [Indexed: 02/04/2023] Open
Abstract
The human gut microbiome (GM) is a complex ecosystem that includes numerous prokaryotic and eukaryotic inhabitants. The composition of GM can influence an array of host physiological functions including immune development. Accumulating evidence suggest that several members of non-bacterial microbiota, including protozoa and helminths, that were earlier considered as pathogens, could have a commensal or beneficial relationship with the host. Here we examine the most recent data from omics studies on prokaryota-meiofauna-host interaction as well as the impact of gut parasitome on gut bacterial ecology and its role as 'immunological driver' in health and disease to glimpse new therapeutic perspectives.
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Affiliation(s)
| | - Andrea Iorio
- Department of Diagnostic and Laboratory Medicine, Unit of Parasitology and Multimodal Laboratory Medicine Research Area, Unit of Human Microbiome, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | - Serena Porcari
- Gastroenterology Unit, Fondazione Policlinico Gemelli IRCCS, Roma, Italy
| | - Luca Masucci
- Microbiology Unit, Fondazione Policlinico Universitario ‘A. Gemelli’ IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Maurizio Sanguinetti
- Microbiology Unit, Fondazione Policlinico Universitario ‘A. Gemelli’ IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Carlo Federico Perno
- Department of Diagnostic and Laboratory Medicine, Unit of Microbiology and Diagnostic Immunology, and Multimodal Laboratory Medicine Research Area, Ospedale Pediatrico Bambino Gesù, Roma, Italy
| | - Antonio Gasbarrini
- Gastroenterology Unit, Fondazione Policlinico Gemelli IRCCS, Roma, Italy
| | - Lorenza Putignani
- Department of Diagnostic and Laboratory Medicine, Unit of Parasitology and Multimodal Laboratory Medicine Research Area, Unit of Human Microbiome, Bambino Gesù Children’s Hospital, IRCCS, Rome, Italy
| | - Giovanni Cammarota
- Gastroenterology Unit, Fondazione Policlinico Gemelli IRCCS, Roma, Italy
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Abstract
It is well established that by modulating various immune functions, host infection may alter the course of concomitant inflammatory diseases, of both infectious and autoimmune etiologies. Beyond the major impact of commensal microbiota on the immune status, host exposure to viral, bacterial, and/or parasitic microorganisms also dramatically influences inflammatory diseases in the host, in a beneficial or harmful manner. Moreover, by modifying pathogen control and host tolerance to tissue damage, a coinfection can profoundly affect the development of a concomitant infectious disease. Here, we review the diverse mechanisms that underlie the impact of (co)infections on inflammatory disorders. We discuss epidemiological studies in the context of the hygiene hypothesis and shed light on the sometimes dual impact of germ exposure on human susceptibility to inflammatory disease. We then summarize the immunomodulatory mechanisms at play, which can involve pleiotropic effects of immune players and discuss the possibility to harness pathogen-derived compounds to the host benefit.
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Jõgi NO, Kitaba N, Storaas T, Schlünssen V, Triebner K, Holloway JW, Horsnell WGC, Svanes C, Bertelsen RJ. Ascaris exposure and its association with lung function, asthma, and DNA methylation in Northern Europe. J Allergy Clin Immunol 2021; 149:1960-1969. [PMID: 34996616 DOI: 10.1016/j.jaci.2021.11.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 10/29/2021] [Accepted: 11/05/2021] [Indexed: 01/17/2023]
Abstract
BACKGROUND Ascaris infections, with a worldwide prevalence above 10%, can cause respiratory pathology. However, long-term effects on lung function in humans are largely unknown. OBJECTIVE We investigated the associations of Ascaris exposure with lung function, asthma, and DNA methylation. METHODS Serum Ascaris IgG antibodies were measured in 671 adults aged 18 to 47 years (46% women) from Aarhus, Bergen, and Tartu RHINESSA study centers. Seropositivity was defined as IgG above the 90th percentile. Linear and logistic regressions were used to analyze Ascaris seropositivity as associated with lung function and asthma, adjusted for age, height, and smoking and clustered by center. DNA methylation in blood was profiled by a commercial methylation assay. RESULTS Ascaris seropositivity was associated with lower FEV1 (-247 mL; 95% CI, -460, -34) and higher odds for asthma (adjusted odds ratio, 5.84; 95% CI, 1.67, 20.37) among men but not women, also after further adjusting for house dust mite sensitivity, consistent across study centers. At a genome-wide level, Ascaris exposure was associated with 23 differentially methylated sites in men and 3 in women. We identified hypermethylation of the MYBPC1 gene, which can regulate airway muscle contraction. We also identified genes linked to asthma pathogenesis such as CRHR1 and GRK1, as well as a differentially methylated region in the PRSS22 gene linked to nematode infection. CONCLUSION Ascaris exposure was associated with substantially lower lung function and increased asthma risk among men. Seropositive participants had sex-specific differences in DNA methylation compared to the unexposed, thus suggesting that exposure may lead to sex-specific epigenetic changes associated with lung pathology.
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Affiliation(s)
- Nils O Jõgi
- Department of Clinical Science, University of Bergen, Bergen, Norway; Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway.
| | - Negusse Kitaba
- Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Torgeir Storaas
- Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
| | - Vivi Schlünssen
- Department of Public Health, Environmental Occupation, and Health, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark; National Research Centre for the Working Environment, Copenhagen, Denmark
| | - Kai Triebner
- Department of Clinical Science, University of Bergen, Bergen, Norway; Core Facility for Metabolomics, University of Bergen, Bergen, Norway
| | - John W Holloway
- Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - William G C Horsnell
- Institute of Infectious Disease and Molecular Medicine/Division of Immunology, University of Cape Town, Cape Town, South Africa; Institute of Microbiology and Infection, University of Birmingham, Birmingham, United Kingdom; Laboratory of Molecular and Experimental Immunology and Neurogenetics, CNRS-University of Orléans and Le Studium Institute for Advanced Studies, Orléans, France.
| | - Cecilie Svanes
- Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway; Centre for International Health, University of Bergen, Bergen, Norway
| | - Randi J Bertelsen
- Department of Clinical Science, University of Bergen, Bergen, Norway; Oral Health Centre of Expertise in Western Norway, Bergen, Norway
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10
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Chauhan A, Sharma A, Tripathi JK, Sun Y, Sukumran P, Singh BB, Mishra BB, Sharma J. Helminth derived factors inhibit neutrophil extracellular trap formation and inflammation in bacterial peritonitis. Sci Rep 2021; 11:12718. [PMID: 34135384 PMCID: PMC8209178 DOI: 10.1038/s41598-021-92001-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 06/03/2021] [Indexed: 01/18/2023] Open
Abstract
Despite their protective antimicrobial function, neutrophil extracellular traps (NETs) have been implicated in propagation of inflammatory responses in several disease conditions including sepsis. Highly diffusible exogenous ROS produced under such inflammatory conditions, can induce exuberant NETs, thus making inhibition of NETs desirable in inflammatory diseases. Here we report that helminth parasite excretory/secretory factors termed as parasitic ligands (PL) inhibit ROS-induced NETs by blocking the activation of nonselective calcium permeable channel Transient Receptor Potential Melastatin 2 (TRPM2). Therapeutic implication of PL mediated blockage of NET formation was tested in preclinical model of septic peritonitis, where PL treatment regulated neutrophil cell death modalities including NET formation and mitigated neutrophil mediated inflammatory response. This translated into improved survival and reduced systemic and local bacterial load in infected mice. Overall, our results posit PL as an important biological regulator of neutrophil functions with implications to a variety of inflammatory diseases including peritonitis.
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Affiliation(s)
- Arun Chauhan
- Department of Biomedical Sciences, The University of North Dakota School of Medicine and Health Sciences, 1301 N Columbia Road, Grand Forks, ND, 58202-9037, USA
| | - Atul Sharma
- Department of Biomedical Sciences, The University of North Dakota School of Medicine and Health Sciences, 1301 N Columbia Road, Grand Forks, ND, 58202-9037, USA
- Department of Critical Care, Division of Anesthesiology, Critical Care and Pain Medicine, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 110, Houston, TX, 77030-4009, USA
| | - Jitendra K Tripathi
- Department of Biomedical Sciences, The University of North Dakota School of Medicine and Health Sciences, 1301 N Columbia Road, Grand Forks, ND, 58202-9037, USA
- Department of Geriatrics, The University of North Dakota School of Medicine and Health Sciences, 1301 N Columbia Road, Grand Forks, ND, 58202-9037, USA
| | - Yuyang Sun
- Department of Periodontics, School of Dentistry, University of Texas Health Science Center, San Antonio, TX, USA
| | - Pramod Sukumran
- Department of Periodontics, School of Dentistry, University of Texas Health Science Center, San Antonio, TX, USA
| | - Brij B Singh
- Department of Periodontics, School of Dentistry, University of Texas Health Science Center, San Antonio, TX, USA
| | - Bibhuti B Mishra
- Department of Biomedical Sciences, The University of North Dakota School of Medicine and Health Sciences, 1301 N Columbia Road, Grand Forks, ND, 58202-9037, USA.
| | - Jyotika Sharma
- Department of Biomedical Sciences, The University of North Dakota School of Medicine and Health Sciences, 1301 N Columbia Road, Grand Forks, ND, 58202-9037, USA.
- Department of Critical Care, Division of Anesthesiology, Critical Care and Pain Medicine, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 110, Houston, TX, 77030-4009, USA.
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Garrido-Amaro C, Cardona P, Gassó D, Arias L, Velarde R, Tvarijonativiciute A, Serrano E, Cardona PJ. Protective Effect of Intestinal Helminthiasis Against Tuberculosis Progression Is Abrogated by Intermittent Food Deprivation. Front Immunol 2021; 12:627638. [PMID: 33936040 PMCID: PMC8079633 DOI: 10.3389/fimmu.2021.627638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 03/26/2021] [Indexed: 11/13/2022] Open
Abstract
Background Tuberculosis (TB) is still a major challenge for humankind. Because regions with the highest incidence also have a high prevalence of helminthiasis and nutritional scarcity, we wanted to understand the impact of these on TB progression. Methods We have developed an experimental murine model for active TB in C3HeB/FeJ, coinfected with Trichuris muris and Heligmosomoides polygyrus nematodes, and exposed to an environmental mycobacterium (M. manresensis) and intermittent fasting. Cause-effect relationships among these factors were explored with Partial Least Squares Path modelling (PLSPM). Results Previous parasitization had a major anti-inflammatory effect and reduced systemic levels of ADA, haptoglobin, local pulmonary levels of IL-1β, IL-6, TNF-α, CXCL-1, CXCL-5 and IL-10. Oral administration of heat-killed M. manresensis resulted in a similar outcome. Both interventions diminished pulmonary pathology and bacillary load, but intermittent food deprivation reduced this protective effect increasing stress and inflammation. The PLSPM revealed nematodes might have protective effects against TB progression. Conclusions Significantly higher cortisol levels in food-deprivation groups showed it is a stressful condition, which might explain its deleterious effect. This highlights the impact of food security on TB eradication policies and the need to prioritize food supply over deworming activities.
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Affiliation(s)
- Cristina Garrido-Amaro
- Wildlife Ecology & Health Group (WE&H) and Servei d’Ecopatologia de Fauna Salvatge (SEFaS), Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
| | - Paula Cardona
- Unitat de Tuberculosi Experimental, Institut Germans Trias i Pujol, UAB, Badalona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Diana Gassó
- Wildlife Ecology & Health Group (WE&H) and Servei d’Ecopatologia de Fauna Salvatge (SEFaS), Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
- Departament of Animal Science, Agrifood, Forestry and Veterinary Campus, University of Lleida, Lleida, Spain
| | - Lilibeth Arias
- Unitat de Tuberculosi Experimental, Institut Germans Trias i Pujol, UAB, Badalona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Roser Velarde
- Wildlife Ecology & Health Group (WE&H) and Servei d’Ecopatologia de Fauna Salvatge (SEFaS), Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
| | - Asta Tvarijonativiciute
- Interdisciplinary Laboratory of Clinical Analysis Interlab-UMU, Regional Campus of International Excellence Campus Mare Nostrum, Universidad de Murcia, Murcia, Spain
| | - Emmanuel Serrano
- Wildlife Ecology & Health Group (WE&H) and Servei d’Ecopatologia de Fauna Salvatge (SEFaS), Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain
| | - Pere-Joan Cardona
- Unitat de Tuberculosi Experimental, Institut Germans Trias i Pujol, UAB, Badalona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
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Brosschot TP, Lawrence KM, Moeller BE, Kennedy MHE, FitzPatrick RD, Gauthier CM, Shin D, Gatti DM, Conway KME, Reynolds LA. Impaired host resistance to Salmonella during helminth co-infection is restored by anthelmintic treatment prior to bacterial challenge. PLoS Negl Trop Dis 2021; 15:e0009052. [PMID: 33471793 PMCID: PMC7850471 DOI: 10.1371/journal.pntd.0009052] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 02/01/2021] [Accepted: 12/08/2020] [Indexed: 12/29/2022] Open
Abstract
Intestinal helminth infection can impair host resistance to co-infection with enteric bacterial pathogens. However, it is not known whether helminth drug-clearance can restore host resistance to bacterial infection. Using a mouse helminth-Salmonella co-infection system, we show that anthelmintic treatment prior to Salmonella challenge is sufficient to restore host resistance to Salmonella. The presence of the small intestine-dwelling helminth Heligmosomoides polygyrus at the point of Salmonella infection supports the initial establishment of Salmonella in the small intestinal lumen. Interestingly, if helminth drug-clearance is delayed until Salmonella has already established in the small intestinal lumen, anthelmintic treatment does not result in complete clearance of Salmonella. This suggests that while the presence of helminths supports initial Salmonella colonization, helminths are dispensable for Salmonella persistence in the host small intestine. These data contribute to the mechanistic understanding of how an ongoing or prior helminth infection can affect pathogenic bacterial colonization and persistence in the mammalian intestine. In regions where helminth infection is common and sanitation standards are poor, people are at a high risk of exposure to bacterial pathogens. Previous work in animal models has shown that helminth infection can impair host resistance to bacterial infection. The current treatment for helminth infection is the administration of helminth-clearing drugs, yet it is not known whether drug clearance of helminths restores helminth-impaired host resistance to bacterial infection. In this report we use a mouse helminth-Salmonella co-infection model system, where we find that the presence of small intestinal helminths at the point of Salmonella infection aids the establishment of Salmonella in the small intestinal lumen. We show that helminth drug clearance prior to Salmonella infection is sufficient to restore host resistance to Salmonella. However, if helminth drug clearance is delayed until after Salmonella had already established in the small intestinal lumen, helminth elimination does not result in complete clearance of Salmonella from this site. Our work suggests that helminth drug clearance may be beneficial in reducing susceptibility to subsequent intestinal bacterial infections, but that helminth drug clearance after co-infection may not result in clearance of bacterial populations that have firmly established in the intestinal lumen.
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Affiliation(s)
- Tara P Brosschot
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, Canada
| | - Katherine M Lawrence
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, Canada
| | - Brandon E Moeller
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, Canada
| | - Mia H E Kennedy
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, Canada
| | - Rachael D FitzPatrick
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, Canada
| | - Courtney M Gauthier
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, Canada
| | - Dongju Shin
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, Canada
| | - Dominique M Gatti
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, Canada
| | - Kate M E Conway
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, Canada
| | - Lisa A Reynolds
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, Canada
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Nguyen TG. Harnessing Newton’s third-law paradigm to treat autoimmune diseases and chronic inflammations. Inflamm Res 2020; 69:813-824. [DOI: 10.1007/s00011-020-01374-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/14/2020] [Accepted: 06/16/2020] [Indexed: 02/07/2023] Open
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