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Migliorisi G, Mastrorocco E, Dal Buono A, Gabbiadini R, Pellegatta G, Spaggiari P, Racca F, Heffler E, Savarino EV, Bezzio C, Repici A, Armuzzi A. Eosinophils, Eosinophilic Gastrointestinal Diseases, and Inflammatory Bowel Disease: A Critical Review. J Clin Med 2024; 13:4119. [PMID: 39064159 PMCID: PMC11278413 DOI: 10.3390/jcm13144119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/07/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
BACKGROUND/OBJECTIVES Inflammatory bowel disease (IBD) and eosinophilic gastrointestinal diseases (EGIDs) are complex, multifactorial chronic inflammatory disorders affecting the gastrointestinal tract. Their epidemiology, particularly for eosinophilic esophagitis (EoE), is increasing worldwide, with a rise in the co-diagnosis of IBD and EGIDs. Both disorders share common risk factors, such as early exposure to antibiotics or specific dietary habits. Moreover, from a molecular perspective, eosinophilic infiltration is crucial in the diagnosis of eosinophilic disorders, and it also plays a pivotal role in IBD histological diagnosis. Indeed, recent evidence highlights the significant role of eosinophils in the health of the intestinal mucosal barrier and as mediators between innate and acquired immunity, even indicating a potential role in IBD pathogenesis. This narrative review aims to summarize the current evidence regarding the common clinical and molecular aspects of EGIDs and IBD and the current state of knowledge regarding overlap conditions and their pathogenesis. METHODS Pubmed was searched until May 2023 to assess relevant studies describing the epidemiology, pathophysiology, and therapy of EGIDs in IBD. RESULTS The immune pathways and mechanisms underlying both EGIDs and IBD remain partially known. An improved understanding of the role of eosinophils in overlapping conditions could lead to enhanced diagnostic precision, the development of more effective future therapeutic strategies, and a more accurate prediction of patient response. Consequently, the identification of red flags indicative of an eosinophilic disorder in IBD patients is of paramount importance and must be evaluated on a case-by-case basis.
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Affiliation(s)
- Giulia Migliorisi
- IBD Center, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Italy; (G.M.); (E.M.); (A.D.B.); (R.G.); (C.B.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072 Pieve Emanuele, Italy; (G.P.); (F.R.); (E.H.); (A.R.)
| | - Elisabetta Mastrorocco
- IBD Center, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Italy; (G.M.); (E.M.); (A.D.B.); (R.G.); (C.B.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072 Pieve Emanuele, Italy; (G.P.); (F.R.); (E.H.); (A.R.)
| | - Arianna Dal Buono
- IBD Center, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Italy; (G.M.); (E.M.); (A.D.B.); (R.G.); (C.B.)
| | - Roberto Gabbiadini
- IBD Center, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Italy; (G.M.); (E.M.); (A.D.B.); (R.G.); (C.B.)
| | - Gaia Pellegatta
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072 Pieve Emanuele, Italy; (G.P.); (F.R.); (E.H.); (A.R.)
- Endoscopic Unit, Department of Gastroenterology, IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy
| | - Paola Spaggiari
- Department of Pathology, Humanitas Research Hospital, 20089 Rozzano, Italy;
| | - Francesca Racca
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072 Pieve Emanuele, Italy; (G.P.); (F.R.); (E.H.); (A.R.)
- Personalized Medicine, Asthma and Allergy, IRCCS—Humanitas Research Hospital, 20089 Rozzano, Italy
| | - Enrico Heffler
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072 Pieve Emanuele, Italy; (G.P.); (F.R.); (E.H.); (A.R.)
- Personalized Medicine, Asthma and Allergy, IRCCS—Humanitas Research Hospital, 20089 Rozzano, Italy
| | - Edoardo Vincenzo Savarino
- Department of Surgery, Oncology and Gastroenterology, Department of Medical and Surgical Specialties, University of Padua, 35122 Padova, Italy;
| | - Cristina Bezzio
- IBD Center, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Italy; (G.M.); (E.M.); (A.D.B.); (R.G.); (C.B.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072 Pieve Emanuele, Italy; (G.P.); (F.R.); (E.H.); (A.R.)
| | - Alessandro Repici
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072 Pieve Emanuele, Italy; (G.P.); (F.R.); (E.H.); (A.R.)
- Endoscopic Unit, Department of Gastroenterology, IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy
| | - Alessandro Armuzzi
- IBD Center, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Italy; (G.M.); (E.M.); (A.D.B.); (R.G.); (C.B.)
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072 Pieve Emanuele, Italy; (G.P.); (F.R.); (E.H.); (A.R.)
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Blair D. Paragonimiasis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1454:203-238. [PMID: 39008267 DOI: 10.1007/978-3-031-60121-7_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
Paragonimiasis is a zoonotic disease caused by lung flukes of the genus Paragonimus. Humans usually become infected by eating freshwater crabs or crayfish containing encysted metacercariae of these worms. However, an alternative route of infection exists: ingestion of raw meat from a mammalian paratenic host. Adult worms normally occur in pairs in cysts in the lungs from which they void their eggs via air passages. The pulmonary form is typical in cases of human infection due to P. westermani, P. heterotremus, and a few other species. Worms may occupy other sites in the body, notably the brain, but lung flukes have made their presence felt in almost every organ. Ectopic paragonimiasis is particularly common when infection is due to members of the P. skrjabini complex. Human paragonimiasis occurs primarily in the tropics and subtropics of Asia, Africa, and the Americas, with different species being responsible in different areas (Table 6.1).
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Affiliation(s)
- David Blair
- James Cook University, Townsville, QLD, Australia
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Morandi B, Sabetti MC, Napoleoni M, Pascucci I, Orlandi G, Pietra M, VanLeeuwen JA, Greenwood SJ, Poglayen G, Galuppi R. Endoparasites in dogs diagnosed at the Veterinary Teaching Hospital (VTH)-University of Bologna, combined with clinicopathological results. A long-term retrospective secondary data study. PLoS One 2023; 18:e0293330. [PMID: 37862344 PMCID: PMC10588848 DOI: 10.1371/journal.pone.0293330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 10/10/2023] [Indexed: 10/22/2023] Open
Abstract
Humans and dogs commonly share the same domestic environment. Europe, and Italy specifically, have a substantial and growing dog population. Potentially zoonotic parasites may be harbored even by dogs receiving regular veterinary care. Thus, transmission of zoonotic or potentially zoonotic parasites to owners and their families should not be underestimated. Frequently, endoparasite infections occur as a subclinical infection and clinicopathological alterations have been documented including anemia, hypoalbuminemia, and eosinophilia. The aim of this large retrospective secondary data study was to analyze coprological endoparasite results and putative risk factors obtained from owned dogs, through a 9-year-period (2011-2019). Possible associations between diagnosed endoparasites and sex, age, seasonality, and year of examination were evaluated. Additionally, parasitological diagnoses were combined to complete blood count parameters and biochemical profiles, when available, to check for any possible hematological alteration from parasitism. A total of 1,972 dogs were evaluated for endoparasites using common fecal diagnostic tests over a 9-year period. The overall proportion of endoparasite-positive animals was 10%. The most common endoparasites detected were Cystoisospora spp. (3%), Toxocara canis (2.8%), Giardia duodenalis (1.6%), and Trichuris vulpis (1.2%). Of these parasites detected, Toxocara poses the greatest zoonotic risk, while Giardia species are considered to have a low potential to be zoonotic. There was no significant diagnostic trend across the years through the study period. Dogs were more frequently diagnosed endoparasite-positive when young and during cold seasons compared to the baselines of mature dogs and warm seasons. The clinicopathological profiles indicated that parasitized dogs had mild hematological alterations. The frequency of detected potentially zoonotic endoparasites in this study highlights that the risk should not be underestimated. Parasitic infection was found to be mostly dependent on age and season. Having this information may help clinicians to develop anthelmintic protocols to reduce the risk of transmission.
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Affiliation(s)
- Benedetto Morandi
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati”, Perugia, Italy
| | | | - Maira Napoleoni
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati”, Perugia, Italy
| | - Ilaria Pascucci
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati”, Perugia, Italy
| | - Gionata Orlandi
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | - Marco Pietra
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | - John A. VanLeeuwen
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Canada
| | - Spencer J. Greenwood
- Department of Biomedical Sciences, Atlantic Veterinary College, Charlottetown, Canada
| | - Giovanni Poglayen
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
| | - Roberta Galuppi
- Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Bologna, Italy
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Antibody response and abomasal histopathology of lambs with haemonchosis during supplementation with medicinal plants and organic selenium. Vet Anim Sci 2023; 19:100290. [PMID: 36845851 PMCID: PMC9945810 DOI: 10.1016/j.vas.2023.100290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 02/04/2023] [Accepted: 02/07/2023] [Indexed: 02/13/2023] Open
Abstract
We evaluated the effects of dietary supplementation with medicinal plants (Herbmix) or organic selenium (Selplex) on the immune responses and histopathology of lambs infected with Haemonchus contortus. Twenty-seven lambs were infected and reinfected with approximately 11,000 third-stage larvae of H. contortus during the experiment (on days 0, 49 and 77). Lambs were divided into two supplemented experimental groups (Herbmix and Selplex) and unsupplemented group (Control). The abomasal worm counts at necropsy on day 119 were lower for Herbmix (4230) and Selplex group (3220) than to the Control (6613) which resulted in 51.3% and 36.0% of reduction, respectively. The mean length of adult female worms was in the order Control > Herbmix > Selplex (2.1, 2.08, and 2.01 cm, respectively). The specific IgG response against adults was significantly affected by time (P < 0.001). Serum-specific and total mucus levels of IgA in the Herbmix group were highest on day 15. Mean levels of serum IgM against adults were influenced by treatment (P = 0.048) and time (P < 0.001). The Herbmix group had strong local inflammation in the abomasal tissue, with the formation of lymphoid aggregates and the infiltration of immune cells, but the tissues of the Selplex group had higher numbers of eosinophils, globule leukocytes, and plasma cells. The lymph nodes of each animal had reactive follicular hyperplasia due to the infection. Dietary nutritional supplementation with a mixture of medicinal plants or organic selenium could improve local immune responses and thus enhance the resistance of animals to this parasitic infection.
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Orazbekov L, Kanafyanova E, Ruslanuly K. Outcomes of pars plana vitrectomy in three cases of ophthalmomyiasis interna. Am J Ophthalmol Case Rep 2022; 28:101697. [PMID: 36118277 PMCID: PMC9474313 DOI: 10.1016/j.ajoc.2022.101697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 12/03/2022] Open
Abstract
Purpose To report the outcomes of pars plana vitrectomy in three cases of ophthalmomyiasis interna. Observations Case 1 is a 15-year-old male with a mobile lenticular gray-white larva in the vitreous. Case 2 is a 4-year-old female with a floating larva in the optic axis. Case 3 is an 8-year-old female with a floating larva in the optic axis; however, intraoperatively, the larva was found subretinally. In all cases, 25-gauge pars plana vitrectomy was performed. Conclusions and importance Ophthalmomyiasis interna is a rare parasitic eye disease that occurs when larvae of flies or gadflies enter the anterior chamber or/and posterior segment. Pars plana vitrectomy is an effective method of dealing with ophthalmomyiasis interna allowing to reach the main goal of treatment: removing the larva and restoring the eye structures. It is necessary to start treatment as soon as possible to prevent complications associated with mechanical injury and the prolonged toxic effect of larval immunogenic materials.
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Affiliation(s)
- Lukpan Orazbekov
- First Ophthalmology Department, Kazakh Eye Research Institute, Almaty, Kazakhstan
- Corresponding author. First Ophthalmology Department, Kazakh Eye Research Institute, Tole Bi Street 95a, 8 Almaty, 050012, Kazakhstan.
| | - Elmira Kanafyanova
- Postgraduate Education Department, Kazakh Eye Research Institute, Almaty, Kazakhstan
| | - Kairat Ruslanuly
- Postgraduate Education Department, Kazakh Eye Research Institute, Almaty, Kazakhstan
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Malta KK, Palazzi C, Neves VH, Aguiar Y, Silva TP, Melo RCN. Schistosomiasis Mansoni-Recruited Eosinophils: An Overview in the Granuloma Context. Microorganisms 2022; 10:microorganisms10102022. [PMID: 36296298 PMCID: PMC9607553 DOI: 10.3390/microorganisms10102022] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/08/2022] [Accepted: 10/09/2022] [Indexed: 11/16/2022] Open
Abstract
Eosinophils are remarkably recruited during schistosomiasis mansoni, one of the most common parasitic diseases worldwide. These cells actively migrate and accumulate at sites of granulomatous inflammation termed granulomas, the main pathological feature of this disease. Eosinophils colonize granulomas as a robust cell population and establish complex interactions with other immune cells and with the granuloma microenvironment. Eosinophils are the most abundant cells in granulomas induced by Schistosoma mansoni infection, but their functions during this disease remain unclear and even controversial. Here, we explore the current information on eosinophils as components of Schistosoma mansoni granulomas in both humans and natural and experimental models and their potential significance as central cells triggered by this infection.
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7
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Sakyi SA, Amoani B, Opoku S, Dzata L, Aniagyei W, Senu E, Dankwa K, Wilson MD. Assessing the role of eosinophil-mediated immune response markers in detecting hookworm infection: A case-control study in Kintampo, Ghana. Health Sci Rep 2022; 5:e674. [PMID: 35662977 PMCID: PMC9165202 DOI: 10.1002/hsr2.674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/22/2022] [Accepted: 05/23/2022] [Indexed: 11/16/2022] Open
Abstract
Background and Aim Human hookworm disease caused by Ancylostoma duodenale and Necator americanus is a serious public health problem. Hookworm infection activates eosinophil‐mediated tissue inflammatory responses, involving the production of the eosinophil‐specific chemokine (eotaxin), recruitment of eosinophils, secretion of the cationic protein, and production of antiparasite immunoglobulin E (IgE). We investigated eosinophil‐mediated immune response as markers (CCL11, eosinophil cationic protein [ECP], and IgE) for detecting hookworm infection. Methods This case‐control study was carried out in hookworm endemic areas within the Kintampo North Municipality.Forty hookworm‐positive subjects and 36 apparently healthy individuals were recruited as cases and controls, respectively. Stool samples were collected for hookworm detection by the Kato–Katz technique and speciation by polymerase chain reaction. Approximately, 5 ml of intravenous blood was used to obtain plasma for the immunological assays. Results Of eosinophil‐mediated immune response markers studied, ECP and CCL11 were significantly higher among hookworm patients compared to controls. Increasing CCL11 (β = −0.81, p = 0.015) was associated with a significant decrease hookworm intensity. However, increasing eosinophil count (β = 0.62, p = 0.027) was associated with significant increase in hookworm intensity. In receiver operator characteristics analysis, ECP could significantly detect hookworm infection with a very high area under the curve (AUC) (AUC = 0.97, p < 0.0001). At a cutoff of 39.05, ECP was the best eosinophil‐mediated immune response marker for detecting hookworm infection with a sensitivity of 97.2%, specificity of 87.8%, a positive predictive value of 89.7%, and a negative predictive value of 96.6%. Conclusion ECP best predicts eosinophil‐mediated immune response for detecting hookworm infection, while CCL11 and eosinophil count better predict the intensity of hookworm. Moreover, the ECP level is a good indicator of hookworm infection and intensity and may require additional investigations to augment current hookworm diagnostic techniques.
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Affiliation(s)
- Samuel A Sakyi
- Department of Molecular Medicine, School of Medicine and Dentistry Kwame Nkrumah University of Science and Technology Kumasi Ghana
| | - Benjamin Amoani
- Department of Biomedical Science, School of Medicine and Dentistry University of Cape Coast Cape Coast Ghana
| | - Stephen Opoku
- Department of Molecular Medicine, School of Medicine and Dentistry Kwame Nkrumah University of Science and Technology Kumasi Ghana
| | - Lawrence Dzata
- Department of Microbiology and Immunology, School of Medical Sciences University of Cape Coast Cape Coast Ghana
| | - Wilfred Aniagyei
- Department of Biomedical Science, School of Medicine and Dentistry University of Cape Coast Cape Coast Ghana
| | - Ebenezer Senu
- Department of Molecular Medicine, School of Medicine and Dentistry Kwame Nkrumah University of Science and Technology Kumasi Ghana
| | - Kwabena Dankwa
- Department of Microbiology and Immunology, School of Medical Sciences University of Cape Coast Cape Coast Ghana
| | - Michael D Wilson
- Parasitology Department, Noguchi Memorial Institute for Medical Research, College of Health Sciences University of Ghana Legon Ghana
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Alshurafa A, Sied M, Elkhdier M, Abdalhadi AM, Yassin MA. Helicobacter pylori infection Manifesting as Hypereosinophilic syndrome and immune thrombocytopenia complicated by portal vein thrombosis and ischemic colitis. IDCases 2022; 27:e01451. [PMID: 35242558 PMCID: PMC8857572 DOI: 10.1016/j.idcr.2022.e01451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 02/07/2022] [Accepted: 02/11/2022] [Indexed: 11/28/2022] Open
Abstract
Hypereosinophilic syndromes (HES) are a group of uncommon disorders characterized by persistent eosinophils overproduction which can lead to tissue damage and organs dysfunction secondary to eosinophils tissue infiltration and inflammatory mediators’ release. Causes of secondary HES include parasitic infection, some solid tumors, underlying connective tissue disease, allergic conditions and T cell lymphoma. Helicobacter pylori (H. pylori) has been reported only once as a cause of secondary HES in the literature. We report the second case of H. pylori infection in 29-year-old male patient who presents with HES and secondary Immune thrombocytopenic purpura (ITP). This case is different from the first reported case by the presence of HES complication on presentation manifesting as portal vein thrombosis, which was further complicated by ischemic colitis. H, pylori eradication therapy alone was successful in a resolution of hypereosinophilia and platelets recovery without the need of corticosteroids or any other treatment.
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Affiliation(s)
- Awni Alshurafa
- Correspondence to: Hamad Medical Corporation, PO Box 3050, Doha, Qatar.
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9
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Ondari E, Calvino-Sanles E, First NJ, Gestal MC. Eosinophils and Bacteria, the Beginning of a Story. Int J Mol Sci 2021; 22:8004. [PMID: 34360770 PMCID: PMC8347986 DOI: 10.3390/ijms22158004] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/16/2021] [Accepted: 07/23/2021] [Indexed: 12/17/2022] Open
Abstract
Eosinophils are granulocytes primarily associated with TH2 responses to parasites or immune hyper-reactive states, such as asthma, allergies, or eosinophilic esophagitis. However, it does not make sense from an evolutionary standpoint to maintain a cell type that is only specific for parasitic infections and that otherwise is somehow harmful to the host. In recent years, there has been a shift in the perception of these cells. Eosinophils have recently been recognized as regulators of immune homeostasis and suppressors of over-reactive pro-inflammatory responses by secreting specific molecules that dampen the immune response. Their role during parasitic infections has been well investigated, and their versatility during immune responses to helminths includes antigen presentation as well as modulation of T cell responses. Although it is known that eosinophils can present antigens during viral infections, there are still many mechanistic aspects of the involvement of eosinophils during viral infections that remain to be elucidated. However, are eosinophils able to respond to bacterial infections? Recent literature indicates that Helicobacter pylori triggers TH2 responses mediated by eosinophils; this promotes anti-inflammatory responses that might be involved in the long-term persistent infection caused by this pathogen. Apparently and on the contrary, in the respiratory tract, eosinophils promote TH17 pro-inflammatory responses during Bordetella bronchiseptica infection, and they are, in fact, critical for early clearance of bacteria from the respiratory tract. However, eosinophils are also intertwined with microbiota, and up to now, it is not clear if microbiota regulates eosinophils or vice versa, or how this connection influences immune responses. In this review, we highlight the current knowledge of eosinophils as regulators of pro and anti-inflammatory responses in the context of both infection and naïve conditions. We propose questions and future directions that might open novel research avenues in the future.
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Affiliation(s)
| | | | | | - Monica C. Gestal
- LSU Health, Department of Microbiology and Immunology, Louisiana State University (LSU), Shreveport, LA 71103, USA; (E.O.); (E.C.-S.); (N.J.F.)
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10
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Plasma cytokines during acute human fascioliasis. Parasitol Res 2021; 120:2965-2968. [PMID: 34245363 DOI: 10.1007/s00436-021-07230-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 06/18/2021] [Indexed: 10/20/2022]
Abstract
Fascioliasis is a foodborne trematode endemic worldwide. Children under 15 years have the highest prevalence of infection. We hypothesized that acute fascioliasis would be associated with more pronounced cytokine changes than in chronic disease or no helminth infections. To test this hypothesis, 33 children who lived in the Peruvian highlands were classified into 3 groups: acute fascioliasis, chronic fascioliasis, and no helminth infection. Type Th1, Th2, and Th17 cytokines were measured in plasma by cytometric bead array. Children with acute infection had higher levels of IL-5 and IL-17 compared with controls (p < 0.001 and p < 0.007, respectively). The increased IL-5 plasma concentration in children with acute infection was associated with the eosinophilia found in that group.
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11
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Akinsanya B, Ayanda IO, Fadipe AO, Onwuka B, Saliu JK. Heavy metals, parasitologic and oxidative stress biomarker investigations in Heterotis niloticus from Lekki Lagoon, Lagos, Nigeria. Toxicol Rep 2020; 7:1075-1082. [PMID: 32923373 PMCID: PMC7476227 DOI: 10.1016/j.toxrep.2020.08.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 07/30/2020] [Accepted: 08/10/2020] [Indexed: 12/31/2022] Open
Abstract
Occurrence of parasites in fish could bio accumulate heavy metals by as much as 200 % more than values present in fish tissues. Parasitic infection in fish is positively skewed towards male fish. Parasitism in fish alters histological structures of vital fish organs. Combined effects of parasitism and heavy metal pollution in fish elicits antioxidant response in fish.
Heavy metal toxicity in aquatic life as a result of human activities poses a grave health threat to water quality, aquatic and human life. Parasites may serve as indicators of heavy metal pollution. This research investigated the health status of the fish Heterotis niloticus viz-a-viz quality of the water and sediments in Lekki lagoon, parasitic infection, presence of heavy metals and oxidative stress response in the liver and intestine of the fish. Parasites recovered were also analyzed for the extent of bioaccumulation of heavy metals. The metals in water, sediments, parasites, and fish were analyzed using Atomic Absorption Spectrometry. Heavy metal concentrations in the surface water were generally below regulatory limits of World Health Organization. Sediment had high levels of aluminium (124.78 mg/kg) and iron (327.41 mg/kg); other heavy metals were below regulatory limits. Tenuisentis niloticus, an acanthocephalan, was the only parasite recovered. Seventy (70) out of 100 fish sampled were infected with the parasite. T. niloticus bioaccumulated Cd, Ni, and Pb between 65 to 100 times more than the liver and 12 to 200 times more than the intestine. Other metals bioaccumulated from the host tissues by the parasite had the magnitude between 1 to 12 times as the liver and 1 to 30 times as the intestine. There were significant differences in the activities of antioxidant enzymes between the parasitized and non-parasitized fishes. Fish tissues also showed histological alterations, ranging from mild infiltration of inflammatory cells to moderate inflammation and haemorrhagic lesions. Human activities that introduce stressors into the lagoon should be controlled.
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Key Words
- APHA, American public health association
- Aquatic
- CAT, catalase
- COD, chemical oxygen demand
- FAO, food and agricultural organization
- GSH, reduced glutathione
- H&E, haematoxyline and eosin
- Heterotis niloticus
- Histopathology
- MDA, malondialdehyde
- Oxidative stress
- ROS, reactive oxygen species
- SOD, superoxide dismutase
- TBA, thiobarbituric acid
- TBARS, thiobarbituric acid reactive substances
- TCA, trichloroacetic acid
- Tenuisentis niloticus
- WHO, world health organization
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Affiliation(s)
| | - Isaac O Ayanda
- Department of Biological Sciences, Covenant University, Ota, Ogun State, Nigeria
| | - Adeola O Fadipe
- Department of Zoology, University of Lagos, Lagos State, Nigeria
| | - Benson Onwuka
- Department of Zoology, University of Lagos, Lagos State, Nigeria
| | - Joseph K Saliu
- Department of Zoology, University of Lagos, Lagos State, Nigeria
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Albuquerque ACA, Bassetto CC, Almeida FA, Hildersley KA, McNeilly TN, Britton C, Amarante AFT. Differences in immune responses to Haemonchus contortus infection in the susceptible Ile de France and the resistant Santa Ines sheep under different anthelmintic treatments regimens. Vet Res 2019; 50:104. [PMID: 31783921 PMCID: PMC6884896 DOI: 10.1186/s13567-019-0722-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 11/08/2019] [Indexed: 12/18/2022] Open
Abstract
Understanding the immunological basis of resistance to gastrointestinal nematode infections in livestock is important in order to develop novel methods of parasite control such as vaccination or genetic selection for parasite resistance. The present study aimed to investigate differences in immune response between parasite resistant Santa Ines and susceptible Ile de France sheep breeds to natural Haemonchus contortus infection. Parasitological parameters, humoral immunity, local and circulating cellular immune responses were evaluated in 19 Santa Ines and 19 Ile de France lambs undergoing different anthelmintic treatments regimens: suppressive treatments (SUP) or targeted selective treatments (TST) over a 5-month grazing period. Santa Ines lambs had significantly lower Haemonchus faecal egg count and worm burden compared to Ile de France regardless of treatment regime. In addition, circulating blood eosinophils count and parasite-specific IgG levels were significantly higher and more rapidly induced in Santa Ines lambs. Abomasal immune responses were generally greater in the resistant breed, which had significantly higher levels of parasite-specific IgA in mucus, and elevated number of globule leukocytes and CD3+ T cells within the abomasal mucosal. Furthermore, numbers of POU2F3+ epithelial cells, a tuft-cell specific transcription factor, were also elevated in the Santa Ines breed, suggesting that this breed is better able to initiate T-helper type 2 immune responses within the abomasum. In conclusion, the differential immunological responses detailed here are relevant to understanding resistance to gastrointestinal nematodes in other host breeds, as well as to resistance breeding as a sustainable control approach for parasitic infections.
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Affiliation(s)
- Ana Cláudia A. Albuquerque
- School of Veterinary Medicine and Animal Science, UNESP–São Paulo State University, Rua Professor Doutor Walter Mauricio Correa s/n, Botucatu, SP 18618-681 Brazil
| | - Cesar Cristiano Bassetto
- Institute of Biosciences, UNESP–São Paulo State University, Rua Professor Dr. Antônio Celso Wagner Zanin, 250, Botucatu, SP 18618-689 Brazil
| | - Fabiana A. Almeida
- Institute of Biosciences, UNESP–São Paulo State University, Rua Professor Dr. Antônio Celso Wagner Zanin, 250, Botucatu, SP 18618-689 Brazil
| | - Katie A. Hildersley
- Institute of Biodiversity, Animal Health and Comparative Medicine, UoG–University of Glasgow, Glasgow, G61 1QH UK
- Disease Control Division, MRI –Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, Midlothian, EH26 0PZ UK
| | - Tom N. McNeilly
- Disease Control Division, MRI –Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, Midlothian, EH26 0PZ UK
| | - Collette Britton
- Institute of Biodiversity, Animal Health and Comparative Medicine, UoG–University of Glasgow, Glasgow, G61 1QH UK
| | - Alessandro F. T. Amarante
- Institute of Biosciences, UNESP–São Paulo State University, Rua Professor Dr. Antônio Celso Wagner Zanin, 250, Botucatu, SP 18618-689 Brazil
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13
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Filippone RT, Sahakian L, Apostolopoulos V, Nurgali K. Eosinophils in Inflammatory Bowel Disease. Inflamm Bowel Dis 2019; 25:1140-1151. [PMID: 30856253 DOI: 10.1093/ibd/izz024] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Indexed: 12/16/2022]
Abstract
Clinical investigations in inflammatory bowel disease (IBD) patients have provided increasing evidence that eosinophils contribute to chronic intestinal inflammation. Accumulation of eosinophils in the gastrointestinal tract correlates with the variations of eosinophil regulatory molecules; however, their role in gastrointestinal dysfunction in IBD has not been fully elucidated. This review will describe the development and characterization of gastrointestinal eosinophils, mechanisms of eosinophil recruitment to the gastrointestinal tract. Moreover, the eosinophil-induced changes to the enteric nervous system associated with disease severity and gastrointestinal dysfunction will be analyzed with suggestive molecular pathways for enteric neuronal injury. Current and potential therapeutic interventions targeting eosinophils will be discussed.
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Affiliation(s)
- Rhiannon T Filippone
- College of Health and Biomedicine, Institute for Health and Sport, Victoria University, Melbourne, Australia
| | - Lauren Sahakian
- College of Health and Biomedicine, Institute for Health and Sport, Victoria University, Melbourne, Australia
| | - Vasso Apostolopoulos
- College of Health and Biomedicine, Institute for Health and Sport, Victoria University, Melbourne, Australia
| | - Kulmira Nurgali
- College of Health and Biomedicine, Institute for Health and Sport, Victoria University, Melbourne, Australia.,Department of Medicine Western Health, Melbourne University, Melbourne, Australia.,Australian Institute for Musculoskeletal Science (AIMSS), Melbourne, Australia
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14
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Abstract
Paragonimiasis is a zoonotic disease caused by lung flukes of the genus Paragonimus. Humans usually become infected by eating freshwater crabs or crayfish containing encysted metacercariae of these worms. However, an alternative route of infection exists: ingestion of raw meat from a mammalian paratenic host. Adult worms normally occur in pairs in cysts in the lungs from which they void their eggs via air passages. The pulmonary form is typical in cases of human infection due to P. westermani, P. heterotremus, and a few other species (Table 5.1). Worms may occupy other sites in the body, notably the brain, but lung flukes have made their presence felt in almost every organ. Ectopic paragonimiasis is particularly common when infection is due to members of the P. skrjabini complex (Table 5.1). Human paragonimiasis occurs primarily in the tropics and subtropics of Asia, Africa, and the Americas, with different species being responsible in different areas (Table 5.1).
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Affiliation(s)
- David Blair
- College of Science and Engineering, James Cook University, Townsville, QLD, Australia.
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15
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Immunity to gastrointestinal nematodes in ruminants: effector cell mechanisms and cytokines. J Parasit Dis 2018; 42:471-482. [PMID: 30538343 DOI: 10.1007/s12639-018-1023-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 08/02/2018] [Indexed: 12/18/2022] Open
Abstract
Gastrointestinal nematodes (GINs) of ruminants are prevalent and have major economic impacts worldwide. The insight studies of immune responses triggered against GINs are of great concern to understand interaction between host's immune system and parasite. T-helper 2 cytokines drive the effector cell mechanisms which include eosinophils and mast cells. The immune responses are controlled by Th2 secreted interleukins (IL); IL3, IL-4, IL-5, IL-9, IL-10 and IL-13. B-Cell immune response is incorporated in defense mechanisms developed against GINs specially immunoglobulins (Ig); IgA, IgE and IgG. The immune resistance of the infected host is presented by failure of larval establishment or hypobiosis, low worm burden and decreased female fecundity. The host-parasite interaction is a complex series that affected by host's genetic constitution, nutrition, age and physiological status. The GINs have different immune evasion mechanisms to improve their survival within the host. Also, management of the host influences GINs parasitism. Thus, the aim of this review is to highlight the hallmarks of immune responses that endorse GINs parasitism. The insights studies of the triggered immune responses developed against GINs will improve the appropriate protective immune strategy.
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16
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Hamilton WL, Agranoff D. Imported gnathostomiasis manifesting as cutaneous larva migrans and Löffler's syndrome. BMJ Case Rep 2018; 2018:bcr-2017-223132. [PMID: 29420245 PMCID: PMC5812380 DOI: 10.1136/bcr-2017-223132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2018] [Indexed: 11/03/2022] Open
Abstract
Here, we report an unusual case of invasive gnathostomiasis in a returning traveller, with a shifting pattern of relapsing cutaneous disease. The previously fit and well 32-year-old man first presented with serpiginous, pruriginous erythematous tracks characteristic of cutaneous larva migrans shortly after returning from South-East Asia. He was systemically well with no other symptoms. After ivermectin therapy, he re-presented with respiratory symptoms, peripheral eosinophilia and transient pulmonary infiltrates; the classic triad of Löffler's syndrome associated with invasive helminth infection. Gnathostoma spinigerum immunoblot was positive. After a second round of ivermectin therapy his respiratory symptoms resolved, but the patient's cutaneous disease relapsed repeatedly over months, with migratory erythematous swellings appearing and settling after a few days. He was treated with a 21-day course of albendazole and is lesion free at 40 weeks post initial presentation.
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Affiliation(s)
- William L. Hamilton
- Acute Medical Unit, Brighton and Sussex University Hospitals NHS Trust, Brighton, UK
| | - Daniel Agranoff
- Department of Infectious Diseases, Brighton and Sussex University Hospitals, Brighton, UK
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17
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Edwards SW, Spofford EM, Price C, Wright HL, Salao K, Suttiprapa S, Sripa B. Opisthorchiasis-Induced Cholangiocarcinoma: How Innate Immunity May Cause Cancer. ADVANCES IN PARASITOLOGY 2018; 101:149-176. [PMID: 29907253 DOI: 10.1016/bs.apar.2018.05.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Innate, inflammatory responses towards persistent Opisthorchis viverrini (OV) infection are likely to contribute to the development of cholangiocarcinoma (CCA), a liver cancer that is rare in the West but prevalent in Greater Mekong Subregion countries in Southeast Asia. Infection results in the infiltration of innate immune cells into the bile ducts and subsequent activation of inflammatory immune responses that fail to clear OV but instead may damage local tissues within the bile ducts. Not all patients infected with OV develop CCA, and so tumourigenesis may be dependent on multiple factors including the magnitude of the inflammatory response that is activated in infected individuals. The purpose of this review is to summarize how innate immune responses may promote tumourigenesis following OV infection and if such responses can be used to predict CCA onset in OV-infected individuals. It also hypothesizes on the role that Helicobacterspp., which are associated with liver fluke infections, may play in activation of the innate the immune system to promote tissue damage and persistent inflammation leading to CCA.
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Affiliation(s)
- Steven W Edwards
- Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Edward M Spofford
- Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Charlotte Price
- Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Helen L Wright
- Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Kanin Salao
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Sutas Suttiprapa
- Tropical Medicine Graduate Program, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Banchob Sripa
- Tropical Medicine Graduate Program, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
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18
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Influence of parasite load on the diagnosis and occurrence of eosinophilia in alcoholic patients infected with Strongyloides stercoralis. J Helminthol 2017; 93:21-25. [PMID: 29179791 DOI: 10.1017/s0022149x17001110] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Alcoholic patients are more susceptible to Strongyloides stercoralis infection. The chronic use of alcohol raises the levels of endogenous corticosteroids, which regulates the development of larvae and stimulates the differentiation of rhabditiform into infective filariform larvae, thus inducing internal autoinfection. Therefore, early diagnosis is important to prevent severe strongyloidiasis. The aim of this study was to evaluate the efficacy of parasitological methods, according to the parasite load and the number of stool samples, for diagnosis of S. stercoralis infection, as well the peripheral blood eosinophil count in alcoholic patients. A total of 330 patients were included in this study. The diagnosis was established using three parasitological methods: agar plate culture, Baermann-Moraes method and spontaneous sedimentation. Peripheral eosinophilia was considered when the level was >600 eosinophils/mm3. The agar plate culture (APC) had the highest sensitivity (97.3%). However, the analysis of multiple samples increased the sensitivity of all parasitological methods. The sensitivities of the methods were influenced by the parasite load. When the larval number was above 10, the sensitivity of APC was 100%, while in spontaneous sedimentation the sensitivity reached 100% when the larval number was above 50. In the present study, 15.4% of alcoholic patients infected with S. stercoralis (12/78) had increased peripheral blood eosinophil count (above 600 eosinophils/mm3). For an efficient parasitological diagnosis of S. stercoralis infection in alcoholic patients, repeated examination by two parasitological methods must be recommended, including agar plate culture due to its higher sensitivity. Moreover, S. stercoralis infection was associated with eosinophilia, mostly in patients excreting up to 10 larvae/g faeces.
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19
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Aravindhan V, Anand G. Cell Type-Specific Immunomodulation Induced by Helminthes: Effect on Metainflammation, Insulin Resistance and Type-2 Diabetes. Am J Trop Med Hyg 2017; 97:1650-1661. [PMID: 29141759 DOI: 10.4269/ajtmh.17-0236] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Recent epidemiological studies have documented an inverse relationship between the decreasing prevalence of helminth infections and the increasing prevalence of metabolic diseases ("metabolic hygiene hypothesis"). Chronic inflammation leading to insulin resistance (IR) has now been identified as a major etiological factor for a variety of metabolic diseases other than obesity and Type-2 diabetes (metainflammation). One way by which helminth infections such as filariasis can modulate IR is by inducing a chronic, nonspecific, low-grade, immune suppression mediated by modified T-helper 2 (Th2) response (induction of both Th2 and regulatory T cells) which can in turn suppress the proinflammatory responses and promote insulin sensitivity (IS). This article provides evidence on how the cross talk between the innate and adaptive arms of the immune responses can modulate IR/sensitivity. The cross talk between innate (macrophages, dendritic cells, natural killer cells, natural killer T cells, myeloid derived suppressor cells, innate lymphoid cells, basophils, eosinophils, and neutrophils) and adaptive (helper T [CD4+] cells, cytotoxic T [CD8+] cells and B cells) immune cells forms two opposing circuits, one associated with IR and the other associated with IS under the conditions of metabolic syndrome and helminth-mediated immunomodulation, respectively.
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20
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Amaral KB, Silva TP, Dias FF, Malta KK, Rosa FM, Costa-Neto SF, Gentile R, Melo RCN. Histological assessment of granulomas in natural and experimental Schistosoma mansoni infections using whole slide imaging. PLoS One 2017; 12:e0184696. [PMID: 28902908 PMCID: PMC5597217 DOI: 10.1371/journal.pone.0184696] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 08/29/2017] [Indexed: 01/21/2023] Open
Abstract
The pathology of schistosomiasis mansoni, a neglected tropical disease of great clinical and socioeconomic importance, results from the parasite eggs that become trapped in host tissues, particularly in the liver and intestines. Continuous antigenic stimulation from these eggs leads to recruitment of inflammatory cells to the sites of infection with formation of periovular granulomas. These complex structures have variable size and composition and are the most striking histopathological feature of schistosomiasis mansoni. However, evaluation of granulomas by conventional microscopy methods is time-consuming and limited, especially in large-scale studies. Here, we used high resolution Whole Slide Imaging (WSI), which allows fast scanning of entire histological slides, and multiple morphometric evaluations, to assess the granulomatous response elicited in target organs (liver, small and large intestines) of two models of schistosomiasis mansoni. One of the advantages of WSI, also termed virtual microscopy, is that it generates images that simultaneously offer high resolution and a wide field of observation. By using a model of natural (Nectomys squamipes, a wild reservoir captured from endemic areas in Brazil) and experimental (Swiss mouse) infection with Schistosoma mansoni, we provided the first detailed WSI characterization of granulomas and other pathological aspects. WSI and quantitative analyses enabled a fast and reliable assessment of the number, evolutional types, frequency and areas of granulomas and inflammatory infiltrates and revealed that target organs are differentially impacted by inflammatory responses in the natural and experimental infections. Remarkably, high-resolution analysis of individual eosinophils, key cells elicited by this helminthic infection, showed a great difference in eosinophil numbers between the two infections. Moreover, features such as the intestinal egg path and confluent granulomas were uncovered. Thus, WSI may be a suitable tool for detailed and precise histological analysis of granulomas and other pathological aspects for clinical and research studies of schistosomiasis.
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Affiliation(s)
- Kátia B. Amaral
- Laboratory of Cellular Biology, Department of Biology, Federal University of Juiz de Fora (UFJF), Juiz de Fora, MG, Brazil
| | - Thiago P. Silva
- Laboratory of Cellular Biology, Department of Biology, Federal University of Juiz de Fora (UFJF), Juiz de Fora, MG, Brazil
| | - Felipe F. Dias
- Laboratory of Cellular Biology, Department of Biology, Federal University of Juiz de Fora (UFJF), Juiz de Fora, MG, Brazil
| | - Kássia K. Malta
- Laboratory of Cellular Biology, Department of Biology, Federal University of Juiz de Fora (UFJF), Juiz de Fora, MG, Brazil
| | - Florence M. Rosa
- Laboratory of Parasitology, Department of Parasitology, Microbiology and Immunology, Federal University of Juiz de Fora (UFJF), Juiz de Fora, MG, Brazil
| | - Sócrates F. Costa-Neto
- Laboratory of Biology and Parasitology of Wild Reservoir Mammals, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Rosana Gentile
- Laboratory of Biology and Parasitology of Wild Reservoir Mammals, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Rossana C. N. Melo
- Laboratory of Cellular Biology, Department of Biology, Federal University of Juiz de Fora (UFJF), Juiz de Fora, MG, Brazil
- * E-mail:
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21
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Lohman BK, Steinel NC, Weber JN, Bolnick DI. Gene Expression Contributes to the Recent Evolution of Host Resistance in a Model Host Parasite System. Front Immunol 2017; 8:1071. [PMID: 28955327 PMCID: PMC5600903 DOI: 10.3389/fimmu.2017.01071] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 08/16/2017] [Indexed: 12/31/2022] Open
Abstract
Heritable population differences in immune gene expression following infection can reveal mechanisms of host immune evolution. We compared gene expression in infected and uninfected threespine stickleback (Gasterosteus aculeatus) from two natural populations that differ in resistance to a native cestode parasite, Schistocephalus solidus. Genes in both the innate and adaptive immune system were differentially expressed as a function of host population, infection status, and their interaction. These genes were enriched for loci controlling immune functions known to differ between host populations or in response to infection. Coexpression network analysis identified two distinct processes contributing to resistance: parasite survival and suppression of growth. Comparing networks between populations showed resistant fish have a dynamic expression profile while susceptible fish are static. In summary, recent evolutionary divergence between two vertebrate populations has generated population-specific gene expression responses to parasite infection, affecting parasite establishment and growth.
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Affiliation(s)
- Brian K Lohman
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, United States
| | - Natalie C Steinel
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, United States.,Department of Medical Education, Dell Medical School, The University of Texas at Austin, Austin, TX, United States
| | - Jesse N Weber
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, United States.,Division of Biological Sciences, The University of Montana, Missoula, MT, United States
| | - Daniel I Bolnick
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, United States
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22
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Recent evolution of extreme cestode growth suppression by a vertebrate host. Proc Natl Acad Sci U S A 2017; 114:6575-6580. [PMID: 28588142 DOI: 10.1073/pnas.1620095114] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Parasites can be a major cause of natural selection on hosts, which consequently evolve a variety of strategies to avoid, eliminate, or tolerate infection. When ecologically similar host populations present disparate infection loads, this natural variation can reveal immunological strategies underlying adaptation to infection and population divergence. For instance, the tapeworm Schistocephalus solidus persistently infects 0-80% of threespine stickleback (Gasterosteus aculeatus) in lakes on Vancouver Island. To test whether these heterogeneous infection rates result from evolved differences in immunity, we experimentally exposed laboratory-reared fish from ecologically similar high-infection and no-infection populations to controlled doses of Schistocephalus We observed heritable between-population differences in several immune traits: Fish from the naturally uninfected population initiated a stronger granulocyte response to Schistocephalus infection, and their granulocytes constitutively generate threefold more reactive oxygen species in cell culture. Despite these immunological differences, Schistocephalus was equally successful at establishing initial infections in both host populations. However, the no-infection fish dramatically suppressed tapeworm growth relative to high-infection fish, and parasite size was intermediate in F1 hybrid hosts. Our results show that stickleback recently evolved heritable variation in their capacity to suppress helminth growth by two orders of magnitude. Data from many natural populations indicate that growth suppression is widespread but not universal and, when present, is associated with reduced infection prevalence. Host suppression of helminth somatic growth may be an important immune strategy that aids in parasite clearance or in mitigating the fitness costs of persistent infection.
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23
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Souza AMDES, Barbuto TM, Freitas FA, Vianna NF, Zanchetta CMC, Forsait S, Borba C, Azambuja AMPD, Cristofani LM, Odone V. An unusual abdominal wall mass in a child. Rev Inst Med Trop Sao Paulo 2017; 59:e16. [PMID: 28423091 PMCID: PMC5398188 DOI: 10.1590/s1678-9946201759016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 02/14/2017] [Indexed: 11/22/2022] Open
Abstract
Abdominal tumors are one of the most common types of pediatric cancer. Therefore, they should always be included in the differential diagnosis of abdominal masses. Here, we present the case of a child whose initial hypothesis of diagnosis contemplated this possibility. Later, it was demonstrated that the abdominal mass found was secondary to a common parasitosis. A 2-year old, moderately malnourished and pale white boy was referred with a history of a rapidly growing, well-limited, middle abdominal mass. The mass was 10 by 3 cm, hard and poorly movable, apparently involving both abdominal rectus muscles. A complete resection was performed, revealing an abdominal wall abscess, with intense eosinophilic proliferation, secondary to a local and intense reaction to innumerous Ascaris lumbricoides eggs. Extra luminal infestations with Ascaris, that usually form peritoneal granulomas have been previously described. However, neither external trauma nor fistula, that could explain the superficial presence of the eggs, was found. This description reinforces the relevance of infectious diseases within the differential diagnosis of abdominal masses, particularly in areas with high prevalence of parasitic infestations.
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Affiliation(s)
- Amalia Maria do Espirito Santo Souza
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Pediatria, Instituto de Tratamento do Câncer Infantil (ITACI), São Paulo, São Paulo, Brazil
| | - Tomas Marzagão Barbuto
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Pediatria, Instituto de Tratamento do Câncer Infantil (ITACI), São Paulo, São Paulo, Brazil
| | - Flávia Alessandra Freitas
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Pediatria, Instituto de Tratamento do Câncer Infantil (ITACI), São Paulo, São Paulo, Brazil
| | - Nathalia Fernandes Vianna
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Pediatria, Instituto de Tratamento do Câncer Infantil (ITACI), São Paulo, São Paulo, Brazil
| | - Carla Maria Costa Zanchetta
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Pediatria, Instituto de Tratamento do Câncer Infantil (ITACI), São Paulo, São Paulo, Brazil
| | - Silvana Forsait
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Pediatria, Instituto de Tratamento do Câncer Infantil (ITACI), São Paulo, São Paulo, Brazil
| | - Claudio Borba
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Pediatria, Instituto de Tratamento do Câncer Infantil (ITACI), São Paulo, São Paulo, Brazil
| | - Alessandra Milani Prandini de Azambuja
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Pediatria, Instituto de Tratamento do Câncer Infantil (ITACI), São Paulo, São Paulo, Brazil
| | - Lilian Maria Cristofani
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Pediatria, Instituto de Tratamento do Câncer Infantil (ITACI), São Paulo, São Paulo, Brazil
| | - Vicente Odone
- Universidade de São Paulo, Faculdade de Medicina, Departamento de Pediatria, Instituto de Tratamento do Câncer Infantil (ITACI), São Paulo, São Paulo, Brazil
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24
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Adams MB, Hayward CJ, Nowak BF. Branchial Pathomorphology of Southern Bluefin Tuna Thunnus maccoyii (Castelnau, 1872) Infected by Helminth and Copepodan Parasites. Front Physiol 2017; 8:187. [PMID: 28424628 PMCID: PMC5372790 DOI: 10.3389/fphys.2017.00187] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 03/13/2017] [Indexed: 01/21/2023] Open
Abstract
Three metazoan parasites, a monogenean Hexostoma thynni and two species of copepods Pseudocycnus appendiculatus and Euryphorus brachypterus are known to parasitize the gills of ranched southern bluefin tuna (SBT) and other tuna species. However, there is no detailed information describing the pathological response to infection by these parasites in this species. Wild southern bluefin tuna Thunnus maccoyii (approximately 3 years of age), captured and towed to a grow-out site in the waters immediately south of Port Lincoln, South Australia were subsequently sampled (n = 10) monthly from March until August 2004 during commercial harvest operations. Longitudinal sections of gill hemibranchs with attached parasites were excised and fixed for routine histology and immunohistochemistry. Reference samples were also collected from fish displaying no signs of parasitism or other grossly observable anomalies. Two morphologically distinct granulocytes were observed and putatively identified as eosinophils and mast cells. Pathology was localized to filaments upon and immediately adjacent to parasite attachment sites. Branchial cellular responses, adjunct to the attachment of H. thynni by its opisthaptoral clamps, included hyperplasia and inflammation resulting in structural remodeling of branchial tissues. Inflammatory infiltrates were often dominated by putative eosinophils and lymphocytes when parasitized by H. thynni and P. appendiculatus. Gill associated lymphoid tissue infiltrated the lamellar regions particularly in response to helminth infection. A variable response ranging from hemorrhage with minor hyperplasia or fibroplasia and eosinophilic inflammation to a barely discernible change was seen for gill sections harboring P. appendiculatus and E. brachypterus. The magnitude of the host response to attachment by the latter was congruent with attachment proximity and parasite load. On the basis of the host responses reported here and the low intensity of infection observed in other associated studies these gill ectoparasites are currently considered a low risk for wild and ranched adult SBT.
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Affiliation(s)
- Mark B. Adams
- Department of Fisheries and Aquaculture, Institute for Marine and Antarctic Studies, University of TasmaniaLaunceston, TAS, Australia
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Rammal A, Tewfik M, Rousseau S. Differences in RANTES and IL-6 levels among chronic rhinosinusitis patients with predominant gram-negative and gram-positive infection. J Otolaryngol Head Neck Surg 2017; 46:7. [PMID: 28095898 PMCID: PMC5240439 DOI: 10.1186/s40463-016-0183-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 12/23/2016] [Indexed: 12/17/2022] Open
Abstract
Background Bacteria are suspected players in the pathogenesis of chronic rhinosinusitis (CRS), yet their exact role is not understood. We investigated the effect of planktonic and biofilm of staphylococcus aureus (SA) and Pseudomonas aeruginosa (PA) on the mucosa of CRS patients with gram-positive and gram-negative infections by measuring the levels of IL-6 and RANTES, a chemokine with activity on eosinophils and T lymphocytes. Methods Ethmoid mucosa of six CRS patients with gram-positive bacteria on culture and five with gram-negative bacteria were compared to ethmoid mucosa of 8 control patients. The tissue explants were stimulated with SA and PA extracts in planktonic and biofilm form for 6 hours, then RANTES levels were measured by ELISA. Results Compared to the control group, CRS patients with gram-negative predominance demonstrated a significantly higher level of RANTES expression in response to all forms of bacterial stimuli (P-value <0.05). Patients with gram-positive predominance showed a higher level of RANTES compere to control group, however, this difference was not significant (P-value >0.05). Conclusions The mucosa of CRS patients with gram-negative infections has a heightened innate immune response compared to controls and patients with gram-positive infections. It is possible that this response leads to the pathological eosinophilic inflammation seen in CRS. Electronic supplementary material The online version of this article (doi:10.1186/s40463-016-0183-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Almoaidbellah Rammal
- Department of Otolaryngology - Head and Neck Surgery, McGill University, Montreal, Canada.,Department of Otolaryngology - Head and Neck Surgery, King Abdul-Aziz University, Jeddah, Saudi Arabia
| | - Marc Tewfik
- McGill University Health Centre, 1001 Decarie Blvd., Rm D05.5718, Montreal, QC, H4A 3 J1, Canada.
| | - Simon Rousseau
- Departments of Medicine, McGill University, Montreal, Canada
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Eng SS, DeFelice ML. The Role and Immunobiology of Eosinophils in the Respiratory System: a Comprehensive Review. Clin Rev Allergy Immunol 2016; 50:140-58. [PMID: 26797962 DOI: 10.1007/s12016-015-8526-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The eosinophil is a fully delineated granulocyte that disseminates throughout the bloodstream to end-organs after complete maturation in the bone marrow. While the presence of eosinophils is not uncommon even in healthy individuals, these granulocytes play a central role in inflammation and allergic processes. Normally appearing in smaller numbers, higher levels of eosinophils in the peripheral blood or certain tissues typically signal a pathologic process. Eosinophils confer a beneficial effect on the host by enhancing immunity against molds and viruses. However, tissue-specific elevation of eosinophils, particularly in the respiratory system, can cause a variety of short-term symptoms and may lead to long-term sequelae. Eosinophils often play a role in more commonly encountered disease processes, such as asthma and allergic responses in the upper respiratory tract. They are also integral in the pathology of less common diseases including eosinophilic pneumonia, allergic bronchopulmonary aspergillosis, hypersensitivity pneumonitis, and drug reaction with eosinophilia and systemic symptoms. They can be seen in neoplastic disorders or occupational exposures as well. The involvement of eosinophils in pulmonary disease processes can affect the method of diagnosis and the selection of treatment modalities. By analyzing the complex interaction between the eosinophil and its environment, which includes signaling molecules and tissues, different therapies have been discovered and created in order to target disease processes at a cellular level. Innovative treatments such as mepolizumab and benralizumab will be discussed. The purpose of this article is to further explore the topic of eosinophilic presence, activity, and pathology in the respiratory tract, as well as discuss current and future treatment options through a detailed literature review.
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Affiliation(s)
- Stephanie S Eng
- Thomas Jefferson University, Philadelphia, PA, USA
- Division of Allergy and Immunology, Nemours/AI duPont Hospital for Children, Wilmington, DE, USA
| | - Magee L DeFelice
- Thomas Jefferson University, Philadelphia, PA, USA.
- Division of Allergy and Immunology, Nemours/AI duPont Hospital for Children, Wilmington, DE, USA.
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Abstract
Leukocytosis is among the most common findings on peripheral blood smear. A wide range of causes may mediate this finding, and careful clinical and laboratory evaluation assist in differentiating between benign and malignant causes of increased white blood cell counts. In this article, various nonmalignant causes are explored, including infectious, inflammatory, autoimmune, and allergic. In addition, malignant causes of leukocytosis are discussed, including myeloproliferative disorders, acute leukemia, and chronic leukemia, as well as treatment and monitoring for patients with these diseases.
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Affiliation(s)
- Page Widick
- Department of Internal Medicine, Rhode Island Hospital, Brown University, JB 0100, 593 Eddy Street, Providence, RI 02903, USA
| | - Eric S Winer
- Division of Hematology/Oncology, Rhode Island Hospital, Brown University, 593 Eddy Street, Providence, RI 02903, USA.
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Teixeira MCA, Pacheco FTF, Souza JN, Silva MLS, Inês EJ, Soares NM. Strongyloides stercoralis Infection in Alcoholic Patients. BIOMED RESEARCH INTERNATIONAL 2016; 2016:4872473. [PMID: 28105424 PMCID: PMC5220430 DOI: 10.1155/2016/4872473] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 11/13/2016] [Indexed: 12/28/2022]
Abstract
The course of Strongyloides stercoralis infection is usually asymptomatic with a low discharge of rhabditoid larva in feces. However, the deleterious effects of alcohol consumption seem to enhance the susceptibility to infection, as shown by a fivefold higher strongyloidiasis frequency in alcoholics than in nonalcoholics. Moreover, the association between S. stercoralis infection and alcoholism presents a risk for hyperinfection and severe strongyloidiasis. There are several possible mechanisms for the disruption of the host-parasite equilibrium in ethanol-addicted patients with chronic strongyloidiasis. One explanation is that chronic ethanol intake stimulates the hypothalamic-pituitary-adrenal (HPA) axis to produce excessive levels of endogenous cortisol, which in turn can lead to a deficiency in type 2 T helper cells (Th2) protective response, and also to mimic the parasite hormone ecdysone, which promotes the transformation of rhabditiform larvae to filariform larvae, leading to autoinfection. Therefore, when untreated, alcoholic patients are continuously infected by this autoinfection mechanism. Thus, the early diagnosis of strongyloidiasis and treatment can prevent serious forms of hyperinfection in ethanol abusers.
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Affiliation(s)
- Marcia C. A. Teixeira
- Faculdade de Farmácia, Universidade Federal da Bahia, 40170115 Salvador, BA, Brazil
- *Marcia C. A. Teixeira:
| | - Flavia T. F. Pacheco
- Faculdade de Farmácia, Universidade Federal da Bahia, 40170115 Salvador, BA, Brazil
| | - Joelma N. Souza
- Faculdade de Farmácia, Universidade Federal da Bahia, 40170115 Salvador, BA, Brazil
| | - Mônica L. S. Silva
- Faculdade de Farmácia, Universidade Federal da Bahia, 40170115 Salvador, BA, Brazil
| | - Elizabete J. Inês
- Faculdade de Farmácia, Universidade Federal da Bahia, 40170115 Salvador, BA, Brazil
| | - Neci M. Soares
- Faculdade de Farmácia, Universidade Federal da Bahia, 40170115 Salvador, BA, Brazil
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Jiero S, Ali M, Pasaribu S, Pasaribu AP. Correlation between eosinophil count and soil-transmitted helminth infection in children. ASIAN PACIFIC JOURNAL OF TROPICAL DISEASE 2015. [DOI: 10.1016/s2222-1808(15)60936-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Human Blood-Circulating Basophils Capture HIV-1 and Mediate Viral trans-Infection of CD4+ T Cells. J Virol 2015; 89:8050-62. [PMID: 26018157 DOI: 10.1128/jvi.01021-15] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 05/18/2015] [Indexed: 12/12/2022] Open
Abstract
UNLABELLED Cell-associated HIV-1 infection has been proposed to play a pivotal role in the spread of HIV-1 infection. Granulocytes are a category of white blood cells, comprising mainly basophils, neutrophils, and eosinophils, and participate in various inflammatory reactions and defense against pathogens. Here, we investigated the role of human blood granulocytes in the dissemination of HIV-1. These cells were found to express a variety of HIV-1 attachment factors (HAFs). Basophils expressed HAFs dendritic cell (DC)-specific intercellular adhesion molecule 3 (ICAM3)-grabbing nonintegrin (DC-SIGN), DC immunoreceptor (DCIR), heparan sulfate proteoglycan (HSPG), and α4β7 integrin and mediated the most efficient capture of HIV-1 on the cell surface. Neutrophils were found to express DCIR and demonstrated limited efficiency of viral capture. Eosinophils expressed α4β7 integrin but exhibited little or no virus-binding capacity. Intriguingly, following direct contact with CD4+ T cells, viruses harbored on the surface of basophils were transferred to T cells. The contact between basophils and CD4+ T cells and formation of infectious synapses appeared necessary for efficient HIV-1 spread. In HIV-1-infected individuals, the frequency of basophils remained fairly stable over the course of disease, regardless of CD4+ T depletion or the emergence of AIDS-associated opportunistic infections. Collectively, our results provide novel insights into the roles of granulocytes, particularly basophils, in HIV-1 dissemination. Thus, strategies designed to prevent basophil-mediated viral capture and transfer may be developed into a new form of therapy. IMPORTANCE Cell-associated HIV-1 infection has been proposed to play a pivotal role in the spread of HIV-1 infection. Here, we demonstrated that human blood-circulating granulocytes, particularly basophils, can capture HIV-1 and mediate viral trans-infection of CD4+ T cells. The expression of a variety of HIV-1 attachment factors, such as the C-type lectins, etc., facilitates viral capture and transfer. Intriguingly, the frequency of basophils in patients with different levels of CD4+ T counts remains fairly stable during the course of disease. Our results provide novel insights into the roles of granulocytes, particularly basophils, in HIV-1 dissemination. We suggest that strategies designed to prevent basophil-mediated viral capture and transfer may be a new direction for the development of anti-HIV therapy.
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Bolus WR, Gutierrez DA, Kennedy AJ, Anderson-Baucum EK, Hasty AH. CCR2 deficiency leads to increased eosinophils, alternative macrophage activation, and type 2 cytokine expression in adipose tissue. J Leukoc Biol 2015; 98:467-77. [PMID: 25934927 DOI: 10.1189/jlb.3hi0115-018r] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 03/25/2015] [Indexed: 12/25/2022] Open
Abstract
Adipose tissue (AT) inflammation during obesity is mediated by immune cells and closely correlates with systemic insulin resistance. In lean AT, eosinophils are present in low but significant numbers and capable of promoting alternative macrophage activation in an IL-4/IL-13-dependent manner. In WT mice, obesity causes the proportion of AT eosinophils to decline, concomitant with inflammation and classical activation of AT macrophages. In this study, we show that CCR2 deficiency leads to increased eosinophil accumulation in AT. Furthermore, in contrast to WT mice, the increase in eosinophils in CCR2(-/-) AT is sustained and even amplified during obesity. Interestingly, a significant portion of eosinophils is found in CLSs in AT of obese CCR2(-/-) mice, which is the first time eosinophils have been shown to localize to these inflammatory hot spots. CCR2(-/-) bone marrow precursors displayed increased expression of various key eosinophil genes during in vitro differentiation to eosinophils, suggesting a potentially altered eosinophil phenotype in the absence of CCR2. In addition, the proportion of eosinophils in AT positively correlated with local expression of Il5, a potent eosinophil stimulator. The increase in eosinophils in CCR2(-/-) mice was detected in all white fat pads analyzed and in the peritoneal cavity but not in bone marrow, blood, spleen, or liver. In AT of CCR2(-/-) mice, an increased eosinophil number positively correlated with M2-like macrophages, expression of the Treg marker Foxp3, and type 2 cytokines, Il4, Il5, and Il13. This is the first study to link CCR2 function with regulation of AT eosinophil accumulation.
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Affiliation(s)
- W Reid Bolus
- *Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, Tennessee, USA; and Veterans Affairs Tennessee Valley Healthcare System, Nashville Tennessee, USA
| | - Dario A Gutierrez
- *Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, Tennessee, USA; and Veterans Affairs Tennessee Valley Healthcare System, Nashville Tennessee, USA
| | - Arion J Kennedy
- *Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, Tennessee, USA; and Veterans Affairs Tennessee Valley Healthcare System, Nashville Tennessee, USA
| | - Emily K Anderson-Baucum
- *Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, Tennessee, USA; and Veterans Affairs Tennessee Valley Healthcare System, Nashville Tennessee, USA
| | - Alyssa H Hasty
- *Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, Tennessee, USA; and Veterans Affairs Tennessee Valley Healthcare System, Nashville Tennessee, USA
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Additive anti-allergic effects of anti-interleukin-33 and anti-Siglec-F treatments in a murine model of allergic asthma. Cent Eur J Immunol 2014; 39:426-33. [PMID: 26155158 PMCID: PMC4439951 DOI: 10.5114/ceji.2014.47724] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 09/24/2014] [Indexed: 12/21/2022] Open
Abstract
Background Anti-interleukin-33 (anti-IL-33) and anti-Siglec-F antibodies have potent anti-allergic effects on murine allergic asthma and rhinitis and induce eosinophil apoptosis. Objective We aimed to determine whether post-sensitization with anti-IL-33/anti-Siglec-F treatments exhibited more potent effects compared to individual treatments in a murine allergic asthma model. Material and methods Twenty-five BALB/c mice were separated into five groups (n = 5): Group A (control), Group B (ovalbumin [OVA] challenge), Group C (OVA + anti-IL-33), Group D (OVA + anti-Siglec-F), and Group E (OVA + anti-IL-33 + anti-Siglec-F). Serum total/ OVA-specific IgE, bronchoalveolar lavage (BAL) inflammatory cells and cytokines (IL-4 and IL-5), histopathological lung properties, and airway hyperreactivity were compared. Results Ovalbumin challenge induced strong immune and inflammatory responses with > 6-fold IgE level increases; 10- to 25-fold BAL eosinophil, neutrophil, and lymphocyte count increases; and > 1.5-fold IL-4 and IL-5 level increases (p < 0.05). Whereas anti-IL-33 reduced neutrophil counts, anti-Siglec-F and anti-IL-33/anti-Siglec-F reduced both eosinophil and neutrophil counts (p < 0.05). Individual treatments reduced OVA-mediated bronchiolar infiltration by 50% (p <0.05). Ovalbumin challenge increased airway hyperreactivity by 4-fold (Group B; 2000.0 ±671.8% increase in Penh) compared to controls (Group A; 445.7 ±33.5% increase in Penh) (p = 0.016). The anti-IL-33 (Group C: 1579.4 ±973.6% increase in Penh) and anti-Siglec-F (Group D: 930.4 ±236.5%) groups demonstrated significantly reduced hyperreactivity (p = 0.029). Anti-IL-33/anti-Siglec-F therapy showed synergism towards neutrophil counts, IL-5 concentrations, bronchial infiltration, and hyperreactivity (p < 0.05). Conclusions Combination treatment with anti-IL-33/anti-Siglec-F had more potent anti-allergic effects, reducing eosinophilic infiltration through their additive effects in a murine allergic asthma model.
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Li S, Yang F, Ji P, Zeng X, Wu X, Wei J, Ouyang L, Liang J, Zheng H, Wu Z, Lv Z. Eosinophil chemotactic chemokine profilings of the brain from permissive and non-permissive hosts infected with Angiostrongylus cantonenis. Parasitol Res 2014; 113:517-25. [PMID: 24233410 DOI: 10.1007/s00436-013-3683-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Accepted: 11/04/2013] [Indexed: 01/21/2023]
Abstract
Angiostrongylus cantonensis invasion primarily cause heavy or negligible eosinophic meningitis and meningoencephalitis in the brain of non-permissive and permissive hosts, respectively. Chemokines are effective leukocyte chemoattractants and may play an essential role in mediating eosinophil recruitment in angiostrongyliasis. In the present study, we comparatively analyzed changes in peripheral and CSF eosinophil counts, and expression profilings of eosinophil chemotactic chemokines in A. cantonensis-infected mice (CCL 2, CCL 3, CCL 5, CCL7, CCL 8, CCL 11, CCL 12, CCL 24 and CCL 28) and rats (CCL 2, CCL 3, CCL 5, CCL 11 and CCL 12) were explored at 1, 2, 5, 7, 14, and 21 days post-infection (dpi), and found significantly elevated numbers of eosinophils in blood and CSF of infected mice after 5 dpi, while significant increases of eosinophils in blood and CSF of infected rats were detected after 5 and 14 dpi, respectively. The kinetics of CSF eosinophilia is basically correlated with eosinophil chemotactic chemokine levels in brains of infected animals at each time point. Interestingly, less CSF eosinophils and infiltration of eosinophils in the brain were noted in rats than in mice, though extremely high levels of chemokines were also maintained in the brains of infected rats at 21 dpi. We further described CCL 11 (eotaxin), a previously reported eosinophil chemotactic factor in angiostrongyliasis, was mainly released from activated microglia in mice and rats infected with A. cantonensis. Our results reveal that different complicated chemokine networks mediate recruitment of eosinophils between permissive and non-permissive hosts during A. cantonensis infection, and provide promising targets for clinical treatment of angiostrongyliasis.
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5-lipoxygenase-dependent recruitment of neutrophils and macrophages by eotaxin-stimulated murine eosinophils. Mediators Inflamm 2014; 2014:102160. [PMID: 24723744 PMCID: PMC3955596 DOI: 10.1155/2014/102160] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 01/14/2014] [Accepted: 01/15/2014] [Indexed: 12/21/2022] Open
Abstract
The roles of eosinophils in antimicrobial defense remain incompletely understood. In ovalbumin-sensitized mice, eosinophils are selectively recruited to the peritoneal cavity by antigen, eotaxin, or leukotriene(LT)B4, a 5-lipoxygenase (5-LO) metabolite. 5-LO blockade prevents responses to both antigen and eotaxin. We examined responses to eotaxin in the absence of sensitization and their dependence on 5-LO. BALB/c or PAS mice and their mutants (5-LO-deficient ALOX; eosinophil-deficient GATA-1) were injected i.p. with eotaxin, eosinophils, or both, and leukocyte accumulation was quantified up to 24 h. Significant recruitment of eosinophils by eotaxin in BALB/c, up to 24 h, was accompanied by much larger numbers of recruited neutrophils and monocytes/macrophages. These effects were abolished by eotaxin neutralization and 5-LO-activating protein inhibitor MK886. In ALOX (but not PAS) mice, eotaxin recruitment was abolished for eosinophils and halved for neutrophils. In GATA-1 mutants, eotaxin recruited neither neutrophils nor macrophages. Transfer of eosinophils cultured from bone-marrow of BALB/c donors, or from ALOX donors, into GATA-1 mutant recipients, i.p., restored eotaxin recruitment of neutrophils and showed that the critical step dependent on 5-LO is the initial recruitment of eosinophils by eotaxin, not the secondary neutrophil accumulation. Eosinophil-dependent recruitment of neutrophils in naive BALB/c mice was associated with increased binding of bacteria.
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Chuah C, Jones MK, Burke ML, McManus DP, Gobert GN. Cellular and chemokine-mediated regulation in schistosome-induced hepatic pathology. Trends Parasitol 2014; 30:141-50. [PMID: 24433721 DOI: 10.1016/j.pt.2013.12.009] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Revised: 12/17/2013] [Accepted: 12/18/2013] [Indexed: 02/06/2023]
Abstract
In hepatic schistosomiasis, pathology arises when schistosome eggs become lodged in the host liver, evoking an interleukin 4 (IL-4)- and IL-13-mediated dominant CD4(+) Th2 immune response. This response leads to the development of granulomas and fibrosis, with eosinophils, neutrophils, macrophages, hepatic stellate cells, and lymphocytes all identified as major cellular contributors to these events. This review outlines the cellular and molecular mechanisms of hepatic schistosomiasis, with an emphasis on the major cellular components and their release of chemokines. The differences between Schistosoma mansoni- and Schistosoma japonicum-induced hepatic granuloma are also discussed. This comprehensive overview of the processes associated with hepatic schistosomiasis may provide new insights into improved treatment for both schistosomiasis and other granulofibrotic diseases.
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Affiliation(s)
- Candy Chuah
- Parasite Cell Biology Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, 4006, Australia; School of Veterinary Sciences, The University of Queensland, Gatton, 4343, Australia; School of Medical Sciences, Universiti Sains Malaysia, 16150, Kelantan, Malaysia
| | - Malcolm K Jones
- Parasite Cell Biology Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, 4006, Australia; School of Veterinary Sciences, The University of Queensland, Gatton, 4343, Australia
| | - Melissa L Burke
- Division of Mycobacterial Research, National Institute for Medical Research, London, NW7 1AA, UK
| | - Donald P McManus
- Molecular Parasitology Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, 4006, Australia
| | - Geoffrey N Gobert
- Molecular Parasitology Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, 4006, Australia.
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Abstract
Paragonimiasis is a zoonotic disease caused by lung flukes of the genus Paragonimus. Humans usually become infected by eating freshwater crabs or crayfish containing encysted metacercariae of these worms. However, an alternative route of infection exists: ingestion of raw meat from a mammalian paratenic host. Adult worms normally occur in pairs in cysts in the lungs from which they void their eggs via air passages. The pulmonary form is typical in cases of human infection due to P. westermani, P. heterotremus, and a few other species (Table 5.1). Worms may occupy other sites in the body, notably the brain, but lung flukes have made their presence felt in almost every organ. Ectopic paragonimiasis is particularly common when infection is due to members of the P. skrjabini complex (Table 5.1). Human paragonimiasis occurs primarily in the tropics and subtropics of Asia, Africa, and the Americas, with different species being responsible in different areas (Table 5.1).
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Affiliation(s)
- David Blair
- College of Science and Engineering, James Cook University, Townsville, QLD, Australia.
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Santos FLN, Souza AMGCD, Soares NM. HOOKWORM AND THREADWORM INFECTIONS AND THEIR ASSOCIATION WITH HEMOGLOBIN AND EOSINOPHIL CONCENTRATIONS IN RESIDENTS OF SALVADOR-BAHIA, BRAZIL. Rev Inst Med Trop Sao Paulo 2013. [DOI: 10.1590/s0036-46652013000400003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
SUMMARY Parasitic infections are responsible for substantial mortality and morbidity worldwide. In most healthy individuals, little overt pathology is observed during infection with S. stercoralis. However, the symptoms in advanced cases may include gastrointestinal bleeding. Anemia is most commonly associated with hookworm infection, especially when several hundred worms are present. Our study evaluates the relationship between the hookworm or S. stercoralis infection status and the hemoglobin concentration of individuals examined by a private network of laboratories in Salvador, Bahia, Brazil. We examined 374,120 samples from middle-class individuals living in Salvador City from January 2004 to April 2008. The stool samples were analyzed by the Lutz and Baermann-Moraes methods, and the blood samples were analyzed for hemoglobin concentration and eosinophil counting. The prevalence of hookworm and S. stercoralis were 0.27% (1,027) and 0.34% (1,286), respectively. The prevalence of hookworm and S. stercoralis infection was significantly higher in males than in females and increased with age. Eosinophilia was a common laboratorial finding in individuals infected with hookworm and S. stercoralis. The hemoglobin concentration was lower in the hookworm-infected individuals than in non-infected ones, but none of the examined patients were anemic. Lack of anemia could be a consequence of the socioeconomic status of these patients.
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Prednisolone and cyclosporine A: Effects on an experimental model of ancylostomiasis. Exp Parasitol 2013; 133:80-8. [PMID: 23142084 DOI: 10.1016/j.exppara.2012.10.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Revised: 09/20/2012] [Accepted: 10/19/2012] [Indexed: 10/27/2022]
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Amini-Vaughan ZJ, Martinez-Moczygemba M, Huston DP. Therapeutic strategies for harnessing human eosinophils in allergic inflammation, hypereosinophilic disorders, and cancer. Curr Allergy Asthma Rep 2012; 12:402-12. [PMID: 22875242 PMCID: PMC3729434 DOI: 10.1007/s11882-012-0290-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The eosinophil is a multifunctional granulocyte best known for providing host defense against parasites. Paradoxically, eosinophils are also implicated in the pathogenesis of allergic inflammation, asthma, and hypereosinophilic syndromes. Emerging evidence also supports the potential for harnessing the cytotoxic power of eosinophils and redirecting it to kill solid tumors. Central to eosinophil physiology is interleukin-5 (IL-5) and its receptor (IL-5R) which is composed of a ligand-specific alpha chain (IL-5Rα) and the common beta chain (βc). Eosinophil activation can lead to their degranulation, resulting in rapid release of an arsenal of tissue-destructive proinflammatory mediators and cytotoxic proteins that can be both beneficial and detrimental to the host. This review discusses eosinophil immunobiology and therapeutic strategies for targeting of IL-5 and IL-5R, as well as the potential for harnessing eosinophil cytotoxicity as a tumoricide.
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Affiliation(s)
- Zhaleh J Amini-Vaughan
- Department of Microbial and Molecular Pathogenesis, Texas A&M College of Medicine, Clinical Science and Translational Research Institute, Texas A&M Health Science Center, 2121 West Holcombe Boulevard, Houston, TX 77030, USA
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Furtado JM, Winthrop KL, Butler NJ, Smith JR. Ocular toxoplasmosis I: parasitology, epidemiology and public health. Clin Exp Ophthalmol 2012; 41:82-94. [DOI: 10.1111/j.1442-9071.2012.02821.x] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
| | | | - Nicholas J Butler
- Division of Ocular Immunology, Wilmer Eye Institute, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Justine R Smith
- Casey Eye Institute
- Cell & Developmental Biology, Oregon Health & Science University, Portland, Oregon
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