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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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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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Xu N, Liu X, Tang B, Wang L, Shi HN, Boireau P, Liu M, Bai X. Recombinant Trichinella pseudospiralis Serine Protease Inhibitors Alter Macrophage Polarization In Vitro. Front Microbiol 2017; 8:1834. [PMID: 28983296 PMCID: PMC5613137 DOI: 10.3389/fmicb.2017.01834] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 09/07/2017] [Indexed: 11/13/2022] Open
Abstract
During parasite infection, serine protease inhibitors secreted by parasites play important roles in suppressing host defenses. However, the mechanism of immune regulation is unclear. In this study, a serpin gene from Trichinella pseudospiralis, named Tp-Serpin, was cloned and expressed, in order to reveal its role in the regulation of the host immune response in T. pseudospiralis infection. The results showed that Tp-Serpin encodes a 43 kDa protein that was recognized by serum from T. pseudospiralis infected mice at 60 days post-infection (dpi). Tp-Serpin was found to be expressed at all developmental stages of T. pseudospiralis. Inhibitory activity analysis showed that recombinant Tp-Serpin (rTp-Serpin) effectively inhibited the hydrolytic activity of porcine pancreatic elastase (elastase P), human neutrophil elastase (elastase H), and mouse mast cell protease-1, but showed little inhibitory for human neutrophil cathepsin G (cathepsin G). Furthermore, rTp-Serpin induced polarization of macrophages toward the alternatively activated phenotype (M2) alone by activation of the signal transducer and activator of transcription 3 signaling pathway, and inhibited lipopolysaccharide-induced classically activation (M1) in vitro. These data preliminarily demonstrate that Tp-Serpin may play an important role in the immunoregulation of T. pseudospiralis infection by activating the M2-polarized signaling pathway.
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Affiliation(s)
- Ning Xu
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin UniversityChangchun, China
| | - Xiaolei Liu
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin UniversityChangchun, China
| | - Bin Tang
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin UniversityChangchun, China
| | - Libo Wang
- Yunnan Institute of Parasitic DiseasesPuer, China
| | - Hai N Shi
- Mucosal Immunology Laboratory, Pediatric Gastroenterology Unit, Massachusetts General Hospital, BostonMA, United States
| | - Pascal Boireau
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin UniversityChangchun, China.,Laboratory for Animal Health, ANSES, INRA, ENVA, Université Paris-EstChamps-sur-Marne, France
| | - Mingyuan Liu
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin UniversityChangchun, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and ZoonosesYangzhou, China
| | - Xue Bai
- Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin UniversityChangchun, China
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