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Park JS, Yang S, Song D, Kim SM, Choi J, Kang HY, Jeong HY, Han G, Min DS, Cho ML, Park SH. A newly developed PLD1 inhibitor ameliorates rheumatoid arthritis by regulating pathogenic T and B cells and inhibiting osteoclast differentiation. Immunol Lett 2023; 263:87-96. [PMID: 37722567 DOI: 10.1016/j.imlet.2023.09.007] [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: 03/17/2023] [Revised: 09/13/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
Phospholipase D1 (PLD1), which catalyzes the hydrolysis of phosphatidylcholine to phosphatidic acid and choline, plays multiple roles in inflammation. We investigated the therapeutic effects of the newly developed PLD1 inhibitors A2998, A3000, and A3773 in vitro and in vivo rheumatoid arthritis (RA) model. A3373 reduced the levels of LPS-induced TNF-α, IL-6, and IgG in murine splenocytes in vitro. A3373 also decreased the levels of IFN-γ and IL-17 and the frequencies of Th1, Th17 cells and germinal-center B cells, in splenocytes in vitro. A3373 ameliorated the severity of collagen-induced arthritis (CIA) and suppressed infiltration of inflammatory cells into the joint tissues of mice with CIA compared with vehicle-treated mice. Moreover, A3373 prevented systemic bone demineralization in mice with CIA and suppressed osteoclast differentiation and the mRNA levels of osteoclastogenesis markers in vitro. These results suggest that A3373 has therapeutic potential for RA.
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Affiliation(s)
- Jin-Sil Park
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul 06591, Republic of Korea; Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - SeungCheon Yang
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul 06591, Republic of Korea; Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Doona Song
- Graduate Program of Industrial Pharmaceutical Science, Yonsei University, Incheon 21983, Republic of Korea; Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Republic of Korea
| | - Sung-Min Kim
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul 06591, Republic of Korea; Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - JeongWon Choi
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul 06591, Republic of Korea; Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Hye Yeon Kang
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul 06591, Republic of Korea; Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea; Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Ha Yeon Jeong
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul 06591, Republic of Korea; Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea; Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Gyoonhee Han
- Graduate Program of Industrial Pharmaceutical Science, Yonsei University, Incheon 21983, Republic of Korea; Department of Pharmacy, Yonsei University, Incheon 21983, Republic of Korea
| | - Do Sik Min
- Graduate Program of Industrial Pharmaceutical Science, Yonsei University, Incheon 21983, Republic of Korea; Yonsei Institute of Pharmaceutical Sciences, College of Pharmacy, Yonsei University, Incheon 21983, Republic of Korea.
| | - Mi-La Cho
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul 06591, Republic of Korea; Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea; Department of Medical Life Sciences, College of Medicine, The Catholic University of Korea Seoul 06591, Republic of Korea.
| | - Sung-Hwan Park
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Seoul 06591, Republic of Korea; Lab of Translational ImmunoMedicine, Catholic Research Institute of Medical Science, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea; Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.
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Choi Y, Oh H, Ahn M, Kang T, Chun J, Shin T, Kim J. Immunohistochemical analysis of periostin in the hearts of Lewis rats with experimental autoimmune myocarditis. J Vet Med Sci 2020; 82:1545-1550. [PMID: 32759575 PMCID: PMC7653304 DOI: 10.1292/jvms.20-0225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Periostin plays a critical role in tissue regeneration and homeostasis. The aim of this study was to evaluate the changes in periostin levels in the hearts of rats with experimental autoimmune myocarditis (EAM). Western blot analysis revealed that the expression levels of periostin and alpha-smooth muscle actin were significantly increased at day 14 post-immunization. Immunohistochemical analysis indicated that periostin was expressed in macrophages and fibroblasts in the hearts of EAM-induced rats. In conclusion, these results suggest that increased periostin expression in macrophages and fibroblasts promotes cardiac fibrosis in EAM-induced rats, potentially by enhancing immune cell infiltration. Therefore, periostin should be further investigated as a candidate therapeutic target for myocarditis.
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Affiliation(s)
- Yuna Choi
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju 63243, Republic of Korea
| | - Hanseul Oh
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea
| | - Meejung Ahn
- Department of Animal Science, College of Life Science, Sangji University, Wonju 26339, Republic of Korea
| | - Taeyoung Kang
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju 63243, Republic of Korea
| | - Jiyoon Chun
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju 63243, Republic of Korea
| | - Taekyun Shin
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju 63243, Republic of Korea
| | - Jeongtae Kim
- Department of Anatomy, Kosin University College of Medicine, Busan 49267, Republic of Korea
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Phospholipase D1 has a pivotal role in interleukin-1β-driven chronic autoimmune arthritis through regulation of NF-κB, hypoxia-inducible factor 1α, and FoxO3a. Mol Cell Biol 2013; 33:2760-72. [PMID: 23689131 DOI: 10.1128/mcb.01519-12] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Interleukin-1β (IL-1β) is a potent proinflammatory and immunoregulatory cytokine playing an important role in the progression of rheumatoid arthritis (RA). However, the signaling network of IL-1β in synoviocytes from RA patients is still poorly understood. Here, we show for the first time that phospholipase D1 (PLD1), but not PLD2, is selectively upregulated in IL-1β-stimulated synoviocytes, as well as synovium, from RA patients. IL-1β enhanced the binding of NF-κB and ATF-2 to the PLD1 promoter, thereby enhancing PLD1 expression. PLD1 inhibition abolished the IL-1β-induced expression of proinflammatory mediators and angiogenic factors by suppressing the binding of NF-κB or hypoxia-inducible factor 1α to the promoter of its target genes, as well as IL-1β-induced proliferation or migration. However, suppression of PLD1 activity promoted cell cycle arrest via transactivation of FoxO3a. Furthermore, PLD1 inhibitor significantly suppressed joint inflammation and destruction in IL-1 receptor antagonist-deficient (IL-1Ra(-/-)) mice, a model of spontaneous arthritis. Taken together, these results suggest that the abnormal upregulation of PLD1 may contribute to the pathogenesis of IL-1β-induced chronic arthritis and that a selective PLD1 inhibitor might provide a potential therapeutic molecule for the treatment of chronic inflammatory autoimmune disorders.
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Ahn M, Kim H, Matsumoto Y, Shin T. Increased expression of caveolin-1 and -2 in the hearts of Lewis rats with experimental autoimmune myocarditis. Autoimmunity 2007; 39:489-95. [PMID: 17060028 DOI: 10.1080/08916930600929321] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The expression of caveolin-1, -2 and -3 was studied in the hearts of rats with experimental autoimmune myocarditis (EAM), to elucidate the involvement of caveolins in the pathogenesis of EAM. Western blot analysis showed that levels of caveolin-1 and -2 were significantly increased in the hearts of rats with EAM on day 14 post-immunization (pi), as compared to the hearts of normal controls (p < 0.05, normal controls vs. EAM). Caveolin-3 is already at a high level in control animals, so it does not increase further. Immunohistochemistry showed that caveolin-1 was expressed mainly in ED1-positive macrophages and in some cardiomyocytes and vessels in the EAM lesions. Caveolin-2 was expressed constitutively in the vascular endothelial cells of normal hearts, and its expression was enhanced in EAM rats, as compared with the normal control group. Caveolin-3 was expressed constitutively in the plasma membranes of cardiomyocytes, but not in the vascular endothelial cells and inflammatory cells in the EAM lesions. Our results suggest that the expression of caveolin-1 and -2 is increased in EAM lesions and that the increased expression of caveolin-1 stimulates second signals in affected cells, such as macrophages and some cardiomyocytes, in EAM rats.
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Affiliation(s)
- Meejung Ahn
- Department of Veterinary Medicine, Graduate School, Cheju National University, Jeju City, 690-756, South Korea
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