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Won EJ, Lee YJ, Kim MJ, Lee HI, Jang HH, Kim SH, Yoo HM, Cho N, Shim SC, Kim TJ. A potential role of protein extractions from Metagonimus yokogawai in amelionating inflammation in patients with ankylosing spondylitis. Exp Parasitol 2024; 259:108718. [PMID: 38369180 DOI: 10.1016/j.exppara.2024.108718] [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: 11/20/2023] [Revised: 02/04/2024] [Accepted: 02/08/2024] [Indexed: 02/20/2024]
Abstract
Helminth infections and their components has been recognized to have a positive impact on the immune system. This study aimed to investigate the potential of Metagonimus yokogawai-derived proteins (MYp) to provide protection against ankylosing spondylitis (AS) through modulation of immune responses. The cytotoxicity of MYp at various doses was first assessed using MTS and flow cytometry. Peripheral blood mononuclear cells (PBMCs) were collected from AS patients, and the production of inflammatory cytokines was analyzed through flow cytometry. In the experiments with SKG mice, MYp or vehicle was administered and inflammation was evaluated through immunohistochemistry and enzyme-linked immunosorbent assay. The results showed that MYp did not decrease cell viability of PBMCs even after 48 h. Additionally, the frequencies of IFN-γ and IL-17A producing cells were significantly reduced after MYp treatment in the PBMC cultures. Furthermore, MYp treatment significantly suppressed arthritis and enthesitis in the SKG mouse model. The results suggest the first evidence that MYp can effectively alleviate clinical symptoms and restore cytokine balance in patients with AS.
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Affiliation(s)
- Eun Jeong Won
- Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - Yu Jeong Lee
- Department of Biomedical Sciences, Graduate School of Chonnam National University, Republic of Korea; Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Moon-Ju Kim
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Hae-In Lee
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Hyun Hee Jang
- Department of Biomedical Sciences, Graduate School of Chonnam National University, Republic of Korea; Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Seong Hoon Kim
- Department of Biomedical Sciences, Graduate School of Chonnam National University, Republic of Korea; Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Hee Min Yoo
- Microbiological Analysis Team, Biometrology Group, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
| | - Namki Cho
- College of Pharmacy, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Seung Cheol Shim
- Division of Rheumatology, Daejeon Rheumatoid & Degenerative Arthritis Center, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Tae-Jong Kim
- Department of Biomedical Sciences, Graduate School of Chonnam National University, Republic of Korea; Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea.
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Harnett W, Harnett MM. Epigenetic changes induced by parasitic worms and their excretory-secretory products. Biochem Soc Trans 2024; 52:55-63. [PMID: 38334208 PMCID: PMC10903456 DOI: 10.1042/bst20230087] [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: 12/07/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 02/10/2024]
Abstract
Parasitic worms are pathogens of major medical and veterinary importance. They have evolved highly effective and sophisticated strategies of immune system manipulation, typically involving actively excreted/secreted (E-S) products. These molecules dampen and regulate the host immune responses that would otherwise result in parasite expulsion, thereby enabling the worms to survive in the host for many years, and they can also help prevent the potentially serious tissue damage that the worms can induce. Reflecting these E-S product-associated anti-inflammatory activities, there is also increasing evidence that parasitic worms and their products may serendipitously protect against allergic and autoimmune conditions and in addition, comorbidities of ageing that are associated with inflammatory responses, like type 2 diabetes and obesity. Research in this area has to date generally focused on identifying the cellular and effector targets of immunomodulation induced by the worm E-S products. However, increasing evidence that they can induce stably imprinted phenotypes of haematopoietic and stromal cells which promote their long-lasting survival has recently ignited interest in the ability of the molecules to epigenetically rewire cells to 'resolve and repair' phenotypes. Here, we review and discuss these new data in the context of their potential for exploitation in identifying novel gene signatures for the development of advanced and safe therapeutics for chronic inflammatory diseases.
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Affiliation(s)
- William Harnett
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, U.K
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Harnett MM, Doonan J, Tarafdar A, Pineda MA, Duncombe-Moore J, Buitrago G, Pan P, Hoskisson PA, Selman C, Harnett W. The parasitic worm product ES-62 protects against collagen-induced arthritis by resetting the gut-bone marrow axis in a microbiome-dependent manner. FRONTIERS IN TROPICAL DISEASES 2024; 4:fitd.2023.1334705. [PMID: 38500783 PMCID: PMC7615750 DOI: 10.3389/fitd.2023.1334705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024] Open
Abstract
The parasitic worm-derived immunomodulator, ES-62 rescues defective levels of IL-10-producing regulatory B cells (Bregs) and suppresses chronic Th1/Th17-driven inflammation to protect against joint destruction in the mouse collagen-induced arthritis (CIA) model of rheumatoid arthritis. Such autoimmune arthritis is also associated with dysbiosis of the gut microbiota and disruption of intestinal barrier integrity. We recently further exploited the CIA model to show that ES-62's prevention of joint destruction is associated with protection of intestinal barrier integrity and normalization of the gut microbiota, thereby suppressing the gut pathology that precedes the onset of autoimmunity and joint damage in CIA-mice. As the status of the gut microbiota impacts on immune responses by influencing haematopoiesis, we have therefore investigated whether ES-62 harnesses the homeostatic mechanisms regulating this gut-bone marrow (BM) axis to resolve the chronic inflammation promoting autoimmunity and joint destruction in CIA. Reflecting this, ES-62 was found to counteract the BM myeloid/lymphoid bias typically associated with chronic inflammation and infection. This was achieved primarily by ES-62 acting to maintain the levels of lymphoid lineages (B220+ and CD3+ cells) observed in naïve, healthy mice but lost from the BM of CIA-mice. Moreover, ES-62's ability to prevent bone-destroying osteoclastogenesis was found to be associated with its suppression of CIA-induced upregulation of osteoclast progenitors (OCPs) in the BM. Critically, and supporting ES-62's targeting of the gut-BM axis, this rewiring of inflammatory haematopoiesis was lost in mice with a depleted microbiome. Underlining the importance of ES-62's actions in restoring steady-state haematopoiesis, the BM levels of B and T lymphoid cells were shown to be inversely correlated, whilst the levels of OCPs positively correlated, with the severity of joint damage in CIA-mice.
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Affiliation(s)
- Margaret M. Harnett
- School of Infection and Immunity, University of Glasgow, Glasgow, United Kingdom
| | - James Doonan
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Anuradha Tarafdar
- School of Infection and Immunity, University of Glasgow, Glasgow, United Kingdom
| | - Miguel A. Pineda
- School of Infection and Immunity, University of Glasgow, Glasgow, United Kingdom
| | | | - Geraldine Buitrago
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Piaopiao Pan
- School of Infection and Immunity, University of Glasgow, Glasgow, United Kingdom
| | - Paul A. Hoskisson
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Colin Selman
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, Glasgow, United Kingdom
| | - William Harnett
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
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