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Zhang D, Jiang W, Yu Y, Huang J, Jia Z, Cheng Y, Zhu X. Trichinella spiralis Paramyosin Alleviates Collagen-Induced Arthritis in Mice by Modulating CD4 + T Cell Differentiation. Int J Mol Sci 2024; 25:6706. [PMID: 38928413 PMCID: PMC11204176 DOI: 10.3390/ijms25126706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/11/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease that significantly impacts quality of life by disrupting CD4+ T cell immune homeostasis. The identification of a low-side-effect drug for RA treatment is urgently needed. Our previous study suggests that Trichinella spiralis paramyosin (Ts-Pmy) has immunomodulatory effects, but its potential effect on CD4+ T cell response in RA remains unclear. In this study, we used a murine model to investigate the role of rTs-Pmy in regulating CD4+ T cell differentiation in collagen-induced arthritis (CIA). Additionally, we assessed the impact of rTs-Pmy on CD4+ T cell differentiation towards the Th1 and Th17 phenotypes, which are associated with inflammatory responses in arthritis, using in vitro assays. The results demonstrated that rTs-Pmy administration reduced arthritis severity by inhibiting Th1 and Th17 response while enhancing Treg response. Prophylactic administration of Ts-Pmy showed superior efficacy on CIA compared to therapeutic administration. Furthermore, in vitro assays demonstrated that rTs-Pmy could inhibit the differentiation of CD4+ T cells into Th1 and Th17 while inducing the production of Tregs, suggesting a potential mechanism underlying its therapeutic effects. This study suggests that Ts-Pmy may ameliorate CIA by restoring the immune balance of CD4+ T cells and provides new insights into the mechanism through which helminth-derived proteins exert their effects on autoimmune diseases.
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Affiliation(s)
| | | | | | | | | | - Yuli Cheng
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; (D.Z.); (W.J.); (Y.Y.); (J.H.); (Z.J.)
| | - Xinping Zhu
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China; (D.Z.); (W.J.); (Y.Y.); (J.H.); (Z.J.)
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Osada Y, Shimizu S, Morita K, Gaballah EM, Wu Z, Maekawa Y. Helminth-induced impairment of humoral immunity differently contribute to their anti-arthritic effects in mice: Comparison of Schistosoma mansoni and Trichinella spiralis. Exp Parasitol 2024; 261:108752. [PMID: 38604301 DOI: 10.1016/j.exppara.2024.108752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 04/13/2024]
Abstract
AIMS We have previously reported reduction of anti-type II collagen (IIC) IgG levels in collagen-induced arthritis (CIA) by Schistosoma mansoni (Sm) and Trichinella spiralis (Ts). To clarify the contribution of the impairment of humoral immunity to their anti-arthritic activities, we herein investigated the relationship between anti-IIC IgG levels and arthritic swelling in Sm- or Ts-infected mice. METHODS AND RESULTS Male DBA/1J mice were infected with Sm cercariae or Ts muscle larvae prior to the IIC immunization. In the Sm-infected mice, paw swelling and anti-IIC IgG levels were continuously lower than those of non-infected control group. In contrast, arthritic swelling in the Ts-infected mice only decreased in the early phase of CIA progression, despite the continued impairment of anti-IIC IgG production throughout the experimental period. Correlation coefficients between residual paw swelling and anti-IIC IgG titers were similar or higher in the Sm group than in the control group, but were similar or lower in the Ts group than in the control group. CONCLUSION The down-modulations of anti-IIC IgG levels by the two parasitic infections and the correlation analyses suggest that the anti-arthritic activity of Sm was primarily attributed to the modulation of IgG-independent arthritogenic mechanisms and secondarily to the impairment of anti-IIC IgG production. In contrast, Ts could alleviate CIA mainly via the impairment of antibody production.
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Affiliation(s)
- Yoshio Osada
- Department of Immunology and Parasitology, University of Occupational and Environmental Health, Japan, 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.
| | - Shoichi Shimizu
- Department of Immunology and Parasitology, University of Occupational and Environmental Health, Japan, 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Kentaro Morita
- Department of Immunology and Parasitology, University of Occupational and Environmental Health, Japan, 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan
| | - Eman M Gaballah
- Department of Immunology and Parasitology, University of Occupational and Environmental Health, Japan, 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan; Department of Medical Parasitology, Faculty of Medicine, Damietta University, Damietta, Egypt
| | - Zhiliang Wu
- Department of Parasitology and Infectious Diseases, Gifu University Graduate School of Medicine, 1-1, Yanagito, Gifu, 501-1194, Japan
| | - Yoichi Maekawa
- Department of Parasitology and Infectious Diseases, Gifu University Graduate School of Medicine, 1-1, Yanagito, Gifu, 501-1194, Japan; Division of Preemptive Food Research, Preemptive Food Research Center (PFRC), Gifu University Institute for Advanced Study (GUiAS), 1-1 Yanagido, Gifu, 501-1193, Japan; Division of Animal Medical Science, Center for One Medicine Innovative Translational Research (COMIT), Gifu University Institute for Advanced Study (GUiAS), 1-1 Yanagido, Gifu, 501-1193, Japan
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3
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Zhong H, Jin Y. Single-sex schistosomiasis: a mini review. Front Immunol 2023; 14:1158805. [PMID: 37153566 PMCID: PMC10154636 DOI: 10.3389/fimmu.2023.1158805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 04/10/2023] [Indexed: 05/09/2023] Open
Abstract
Schistosomiasis is a neglected tropical disease caused by dioecious blood flukes of the genus Schistosoma and second to malaria as a parasitic disease with significant socio-economic impacts. Mating is essential for maturation of male and female schistosomes and for females to lay of eggs, which are responsible for the pathogenesis and propagation of the life cycle beyond the mammalian host. Single-sex schistosomes, which do not produce viable eggs without mating, have been overlooked given the symptomatic paucity of the single-sex schistosomiasis and limited diagnostic toolkit. Besides, single-sex schistosomes are less sensitive to praziquantel. Therefore, these issues should be considered to achieve the elimination of this infection disease. The aim of this review is to summarize current progress in research of single-sex schistosomes and host-parasite interactions.
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Affiliation(s)
- Haoran Zhong
- National Reference Laboratory for Animal Schistosomiasis, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Animal Parasitology of Ministry of Agriculture and Rural Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Yamei Jin
- National Reference Laboratory for Animal Schistosomiasis, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Animal Parasitology of Ministry of Agriculture and Rural Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- *Correspondence: Yamei Jin,
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Na-AIP-1 secreted by human hookworms suppresses collagen-induced arthritis. Inflammopharmacology 2022; 30:527-535. [PMID: 35031905 DOI: 10.1007/s10787-021-00909-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 12/02/2021] [Indexed: 11/05/2022]
Abstract
Proteins from helminths have been posed as new immunomodulatory agents with exciting potential in the treatment of immune-mediated diseases including rheumatoid arthritis (RA). In this study we assess the effects of a helminthic excretory/secretory (ES) protein Na-AIP-1 as monotherapy and in combination with methotrexate (MTX) in the well-described collagen-induced arthritis (CIA) model of RA. CIA was induced in DBA/1 J mice which were treated after the onset of arthritis with Na-AIP-1 monotherapy, MTX or Na-AIP-1 + MTX. The clinical scores for weight, arthritis and paw width were recorded along with joint histology as outcome measures. For the clinical parameters of weight, paw score and paw width, none of the Na-AIP-1 monotherapy, MTX therapy or Na-AIP-1 + MTX combination therapy groups displayed any significant difference when compared to the arthritis control. However, a significant reduction in histological score was identified after both monotherapy (Na-AIP-1: 0.83 ± 0.24 vs Arthritis control: 5.58 ± 1.49, p = 0.0277) and combination therapy (Na-AIP-1 + MTX: 0.55 ± 0.28 vs Arthritis control: 5.58 ± 1.49, p = 0.0233) when compared to arthritis control. Furthermore, Na-AIP-1 as both monotherapy (Na-AIP-1: 0.83 ± 0.24 vs MTX: 5.73 ± 1.82 p = 0.0261) and combination therapy (Na-AIP-1 + MTX: 0.55 ± 0.28 vs MTX: 5.73 ± 1.82, p = 0.0221) also significantly reduced histological score when compared to MTX monotherapy. Na-AIP-1 significantly reduced joint pathology in CIA. The hookworm protein Na-AIP-1 seems to be effective in the treatment of RA as monotherapy and when dosed together with MTX, constituting a potential new candidate for drug development. Research should focus on elucidating the mechanism of Na-AIP-1 action as a means to identify novel targets for therapeutics and to further our current understanding of immunobiology in RA.
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de Sousa Palmeira PH, Gois BM, Guerra-Gomes IC, Peixoto RF, de Sousa Dias CN, Araújo JMG, Amaral IP, Keesen TSL. Downregulation of CD73 on CD4+ T cells from patients with chronic Chikungunya infection. Hum Immunol 2022; 83:306-318. [DOI: 10.1016/j.humimm.2022.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/16/2021] [Accepted: 01/08/2022] [Indexed: 12/14/2022]
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Gaballah EM, Morita K, Shimizu S, Elhenawy AA, Nabih N, Elsawey AM, Abdel-Mageed SA, Osada Y. Non-lethal rodent malarial infection prevents collagen-induced arthritis in mice via anti-arthritic immunomodulation. Parasite Immunol 2021; 44:e12901. [PMID: 34931316 DOI: 10.1111/pim.12901] [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: 10/12/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 11/29/2022]
Abstract
AIMS Immunomodulatory effects of parasitic infections on the outcomes of allergic or autoimmune disorders have been addressed in many experimental studies. We examined the effects of Plasmodium yoelii 17X NL (Py) infection on collagen-induced arthritis (CIA). METHODS AND RESULTS Male DBA/1J mice were immunized with bovine type II collagen (IIC). Py inoculation was induced at three different time points (1, 4 weeks after or 4 weeks before the immunization). Only the inoculation at 4 weeks after IIC immunization significantly inhibited arthritis development. Non-malarial anaemia induced by phenylhydrazine hydrochloride (PHZ) did not affect arthritis development. In the infected mice, anti-IIC IgG levels were transiently reduced. In addition, splenic production of pro-arthritic cytokines (IL-17 and TNF-α) and IFN-γ decreased, whereas IL-10 production increased. Flow cytometric analysis clarified that the main IL-10 producers in Py-infected mice had the CD4+ CD25- Foxp3- phenotype, presumably Tr1 cells. CONCLUSION We demonstrated that experimental malarial infection alleviated autoimmune arthritis via immunomodulation, suggesting the importance of malaria in the hygiene hypothesis and the significance of searching for therapeutic immunomodulatory molecules from malarial parasites.
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Affiliation(s)
- Eman M Gaballah
- Department of Medical Parasitology, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Department of Parasitology and Immunology, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan.,Department of Medical Parasitology, Faculty of Medicine, Damietta University, Damietta, Egypt
| | - Kentaro Morita
- Department of Parasitology and Immunology, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Shoichi Shimizu
- Department of Parasitology and Immunology, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Abeer A Elhenawy
- Department of Medical Parasitology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Nairmen Nabih
- Department of Medical Parasitology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Aliaa M Elsawey
- Department of Medical Parasitology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Salama A Abdel-Mageed
- Department of Medical Parasitology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Yoshio Osada
- Department of Parasitology and Immunology, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
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7
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Feng Y, Xie H, Shi F, Chen D, Xie A, Li J, Fang C, Wei H, Huang H, Pan X, Tang X, Huang J. Roles of TLR7 in Schistosoma japonicum Infection-Induced Hepatic Pathological Changes in C57BL/6 Mice. Front Cell Infect Microbiol 2021; 11:754299. [PMID: 34692568 PMCID: PMC8531751 DOI: 10.3389/fcimb.2021.754299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 09/10/2021] [Indexed: 12/11/2022] Open
Abstract
S. japonicum infection can induce granulomatous inflammation in the liver of the host. Granulomatous inflammation limits the spread of infection and plays a role in host protection. Toll-like receptor 7 (TLR7) is an endosomal TLR that recognizes single-stranded RNA (ssRNA). In this study, the role of TLR7 in S. japonicum infection-induced hepatitis was investigated in both normal and TLR7 knockout (KO) C57BL/6 mice. The results indicated that TLR7 KO could aggravate S. japonicum infection-induced damage in the body, with less granuloma formation in the tissue, lower WBCs in blood, and decreased ALT and AST in the serum. Then, the expression of TLR7 was detected in isolated hepatic lymphocytes. The results indicated that the percentage of TLR7+ cells was increased in the infected mice. Hepatic macrophages, DCs, and B cells could express TLR7, and most of the TLR7-expressing cells in the liver of infected mice were macrophages. The percentage of TLR7-expressing macrophages was also increased after infection. Moreover, macrophages, T cells, and B cells showed significant changes in the counts, activation-associated molecule expression, and cytokine secretion between S. japonicum-infected WT and TLR7 KO mice. Altogether, this study indicated that TLR7 could delay the progression of S. japonicum infection-induced hepatitis mainly through macrophages. DCs, B cells, and T cells were involved in the TLR7-mediated immune response.
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Affiliation(s)
- Yuanfa Feng
- Department of Infectious Diseases, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,China Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, China
| | - Hongyan Xie
- China Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, China
| | - Feihu Shi
- Department of Infectious Diseases, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Dianhui Chen
- Department of Infectious Diseases, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,China Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, China
| | - Anqi Xie
- China Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, China
| | - Jiajie Li
- China Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, China
| | - Chao Fang
- China Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, China
| | - Haixia Wei
- China Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, China
| | - He Huang
- China Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, China
| | - Xingfei Pan
- Department of Infectious Diseases, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiaoping Tang
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jun Huang
- China Sino-French Hoffmann Institute, Guangzhou Medical University, Guangzhou, China
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8
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Mu Y, McManus DP, Hou N, Cai P. Schistosome Infection and Schistosome-Derived Products as Modulators for the Prevention and Alleviation of Immunological Disorders. Front Immunol 2021; 12:619776. [PMID: 33692793 PMCID: PMC7937812 DOI: 10.3389/fimmu.2021.619776] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 01/08/2021] [Indexed: 12/22/2022] Open
Abstract
Parasitic helminths, comprising the flatworms (tapeworms and flukes) and nematodes (roundworms), have plagued humans persistently over a considerable period of time. It is now known that the degree of exposure to these and other pathogens inversely correlates with the incidence of both T helper 1 (Th1)-mediated autoimmunity and Th2-mediated allergy. Accordingly, there has been recent increased interest in utilizing active helminth worm infections and helminth-derived products for the treatment of human autoimmune and inflammatory diseases and to alleviate disease severity. Indeed, there is an accumulating list of novel helminth derived molecules, including proteins, peptides, and microRNAs, that have been shown to exhibit therapeutic potential in a variety of disease models. Here we consider the blood-dwelling schistosome flukes, which have evolved subtle immune regulatory mechanisms that promote parasite survival but at the same time minimize host tissue immunopathology. We review and discuss the recent advances in using schistosome infection and schistosome-derived products as therapeutics to treat or mitigate human immune-related disorders, including allergic asthma, arthritis, colitis, diabetes, sepsis, cystitis, and cancer.
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Affiliation(s)
- Yi Mu
- Molecular Parasitology Laboratory, Infectious Diseases Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Donald P McManus
- Molecular Parasitology Laboratory, Infectious Diseases Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Nan Hou
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Pengfei Cai
- Molecular Parasitology Laboratory, Infectious Diseases Program, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
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9
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The Potential Role of Schistosome-Associated Factors as Therapeutic Modulators of the Immune System. Infect Immun 2020; 88:IAI.00754-19. [PMID: 32341115 DOI: 10.1128/iai.00754-19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The parasites and eggs of helminths, including schistosomes, are associated with factors that can modulate the nature and outcomes of host immune responses, particularly enhancing type 2 immunity and impairing the effects of type 1 and type 17 immunity. The main species of schistosomes that cause infection in humans are capable of generating a microenvironment that allows survival of the parasite by evasion of the immune response. Schistosome infections are associated with beneficial effects on chronic immune disorders, including allergies, autoimmune diseases, and alloimmune responses. Recently, there has been increasing research interest in the role of schistosomes in immunoregulation during human infection, and the mechanisms underlying these roles continue to be investigated. Further studies may identify potential opportunities to develop new treatments for immune disease. In this review, we provide an update on the advances in our understanding of schistosome-associated modulation of the cells of the innate and adaptive immune systems as well as the potential role of schistosome-associated factors as therapeutic modulators of immune disorders, including allergies, autoimmune diseases, and transplant immunopathology. We also discuss potential opportunities for targeting schistosome-induced immunoregulation for future translation to the clinical setting.
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10
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Hafez EN, Moawed FSM, Abdel-Hamid GR, Eldin ES. Immunomodulatory activity of gamma radiation-attenuated Toxoplasma gondii in adjuvant arthritic mice. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 209:111920. [PMID: 32505115 DOI: 10.1016/j.jphotobiol.2020.111920] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/20/2020] [Accepted: 05/26/2020] [Indexed: 01/11/2023]
Abstract
There is growing evidence that some parasitic infections can impact a variety of autoimmune diseases by disease-inducing or protecting capacities. Anti-inflammatory molecules secreted by Toxoplasma gondii and other parasites are capable of preventing some autoimmune disease like arthritis, lupus nephritis and systemic lupus erythematosus by acting on the immune system. Here we aimed to evaluate the protective efficacy of vaccination with Toxoplasma gondii (T. gondii), either gamma radiation-attenuated or not, on an adjuvant arthritis mouse model. Forty female Swiss albino mice were conducted in experiment divided into normal control; mice were injected with Complete Freund's adjuvant (CFA) into the right hind paws; mice vaccinated with irradiated T. gondii in the 3rd group and un-irradiated T. gondii in the 4th group then were injected two weeks later with CFA. Histopathological changes and IL-17, STAT6 and ROR-γ levels in the joints, as well as serum survivin and Anti-CCP, were evaluated. Also, the splenic production of TGF-β1, TGF-βR, IL-23, IL-1β, IFN-γ, TFN-∞, NFKβ, MMP1 and MMP3 were assessed. Results exhibited an enhancement of the histopathological changes with diminished the rise of IL-17, STAT 6 and ROR- γ within the joints of both vaccinated groups. Also, serum survivin and Anti-CCP, as well as splenic inflammatory cytokines were reduced. It can be concluded that vaccination with un-irradiated or radiation-attenuated T. gondii exerted a protective effect against adjuvant arthritis with better pathological achievement in the radiation-attenuated vaccinated group. Using gamma radiation-attenuated parasite to exclude the delirious effects of imposing infection of live one may pave the way to new preventative modality against rheumatoid arthritis.
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Affiliation(s)
- Eman N Hafez
- Health Radiation Research, National Center for Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt
| | - Fatma S M Moawed
- Health Radiation Research, National Center for Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt.
| | - Gehan R Abdel-Hamid
- Radiation Biology, National Center for Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt
| | - Eman S Eldin
- Health Radiation Research, National Center for Radiation Research and Technology, Atomic Energy Authority, Cairo, Egypt
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11
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Osada Y, Morita K, Tahara S, Ishihara T, Wu Z, Nagano I, Maekawa Y, Nakae S, Sudo K, Kanazawa T. Th2 signals are not essential for the anti-arthritic effects of Trichinella spiralis in mice. Parasite Immunol 2019; 42:e12677. [PMID: 31605645 DOI: 10.1111/pim.12677] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 09/01/2019] [Accepted: 10/09/2019] [Indexed: 12/31/2022]
Abstract
AIMS Many parasitic helminths are known to alter host immune responses and consequently affect the progression of autoimmune and allergic diseases. The parasitic nematode Trichinella sp has been reported to suppress several experimental diseases in rodents, including experimental autoimmune encephalomyelitis, type 1 diabetes, colitis, airway inflammation and autoimmune arthritis. We tried to clarify requirement of Th2 cytokines in the anti-arthritic effects of Trichinella spiralis (Ts) against collagen-induced arthritis (CIA). METHODS AND RESULTS We infected Ts and then induced CIA in STAT6KO DBA/1 mice, comparing the disease progression with that in wild-type (WT) DBA/1 mice, Ts significantly mitigated arthritis in WT mice, in addition to the impairment of anti-type II collagen (IIC) IgG production in a subclass-independent manner. The genetic absence of STAT6 in the mice did not abrogate the anti-arthritic effects of Ts. Alteration of splenic cytokines was not related to the anti-arthritic effects of the parasite. Moreover, lack of IL-10 did not abrogate the anti-arthritic effects of Ts. CONCLUSION Our results suggest that the anti-arthritic effects of Ts do not require host Th2 signals.
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Affiliation(s)
- Yoshio Osada
- Department of Immunology and Parasitology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Kentaro Morita
- Department of Immunology and Parasitology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Sayaka Tahara
- Department of Immunology and Parasitology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Tsubasa Ishihara
- Department of Immunology and Parasitology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Zhiliang Wu
- Department of Parasitology and Infectious Diseases, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Isao Nagano
- Department of Parasitology and Infectious Diseases, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Yoichi Maekawa
- Department of Parasitology and Infectious Diseases, Gifu University Graduate School of Medicine, Gifu, Japan.,Domain of Integrated Life Systems, Center for Highly Advanced Integration of Nano and Life Sciences (G-CHAIN), Gifu University, Gifu, Japan
| | - Susumu Nakae
- Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Katsuko Sudo
- Animal Research Center, Tokyo Medical University, Tokyo, Japan
| | - Tamotsu Kanazawa
- Department of Immunology and Parasitology, University of Occupational and Environmental Health, Kitakyushu, Japan
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