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Cossu D, Tomizawa Y, Yokoyama K, Sakanishi T, Momotani E, Sechi LA, Hattori N. Mycobacterium avium subsp. paratuberculosis Antigens Elicit a Strong IgG4 Response in Patients with Multiple Sclerosis and Exacerbate Experimental Autoimmune Encephalomyelitis. Life (Basel) 2023; 13:1437. [PMID: 37511812 PMCID: PMC10381415 DOI: 10.3390/life13071437] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/20/2023] [Accepted: 06/23/2023] [Indexed: 07/30/2023] Open
Abstract
Neuroinflammation can be triggered by microbial products disrupting immune regulation. In this study, we investigated the levels of IgG1, IgG2, IgG3, and IgG4 subclasses against the heat shock protein (HSP)70533-545 peptide and lipopentapeptide (MAP_Lp5) derived from Mycobacterium avium subsp. paratuberculosis (MAP) in the blood samples of Japanese and Italian individuals with relapsing remitting multiple sclerosis (MS). Additionally, we examined the impact of this peptide on MOG-induced experimental autoimmune encephalomyelitis (EAE). A total of 130 Japanese and 130 Italian subjects were retrospectively analyzed using the indirect ELISA method. Furthermore, a group of C57BL/6J mice received immunization with the MAP_HSP70533-545 peptide two weeks prior to the active induction of MOG35-55 EAE. The results revealed a significantly robust antibody response against MAP_HSP70533-545 in serum of both Japanese and Italian MS patients compared to their respective control groups. Moreover, heightened levels of serum IgG4 antibodies specific to MAP antigens were correlated with the severity of the disease. Additionally, EAE mice that were immunized with MAP_HSP70533-545 peptide exhibited more severe disease symptoms and increased reactivity of MOG35-55-specific T-cell compared to untreated mice. These findings provide evidence suggesting a potential link between MAP and the development or exacerbation of MS, particularly in a subgroup of MS patients with elevated serum IgG4 levels.
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Affiliation(s)
- Davide Cossu
- Department of Neurology, Juntendo University, Tokyo 1138431, Japan
- Biomedical Research Core Facilities, Juntendo University, Tokyo 1138431, Japan
- Department of Biomedical Sciences, Sassari University, 07100 Sassari, Italy
| | - Yuji Tomizawa
- Department of Neurology, Juntendo University, Tokyo 1138431, Japan
| | - Kazumasa Yokoyama
- Department of Neurology, Juntendo University, Tokyo 1138431, Japan
- Tosei Center for Neurological Diseases, Shizuoka 4180026, Japan
| | - Tamami Sakanishi
- Division of Cell Biology, Juntendo University, Tokyo 1138431, Japan
| | - Eiichi Momotani
- Department of Neurology, Juntendo University, Tokyo 1138431, Japan
- Comparative Medical Research Institute, Tsukuba 3050856, Japan
| | - Leonardo A Sechi
- Department of Biomedical Sciences, Sassari University, 07100 Sassari, Italy
- SC Microbiology, AOU Sassari, 07100 Sassari, Italy
| | - Nobutaka Hattori
- Department of Neurology, Juntendo University, Tokyo 1138431, Japan
- Neurodegenerative Disorders Collaborative Laboratory, RIKEN Center for Brain Science, Saitama 3510918, Japan
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Bao Y, Wu S, Yang T, Wang Z, Wang Y, Jiang X, Ma H. Analysis of long non-coding RNA expression profile of bovine monocyte-macrophage infected by Mycobacterium avium subsp. paratuberculosis. BMC Genomics 2022; 23:768. [PMID: 36418939 PMCID: PMC9685057 DOI: 10.1186/s12864-022-08997-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 11/09/2022] [Indexed: 11/25/2022] Open
Abstract
Mycobacterium avium subsp. paratuberculosis (MAP) is the causative agent of paratuberculosis. As a potential zoonotic pathogen, MAP also seriously threatens human health and social security. At present, long non-coding RNA (lncRNA) has attracted wide attention as an useful biomarker in various diseases. Therefore, our study analyzed the lncRNA expression profiles and lncRNA-mRNA regulatory network of MAP infected bovine monocytes-macrophages and uninfected bovine cells by high-throughput sequencing. A total of 4641 differentially expressed lncRNAs genes were identified, including 3111 up-regulated genes and 1530 down-regulated genes. In addition, lncRNA-mRNA interaction analysis was performed to predict the target genes of lncRNA. Among them, after MAP infection, 86 lncRNAs targeted to mRNA, of which only 6 genes were significantly different. The results of Gene Ontology (GO) enrichment analysis showed that the differentially expressed genes significantly enriched in functional groups were related to immune regulation. Multiple signal pathways including NF-κB, NOD-like receptor, Cytokine-cytokine receptor, Toll-like receptor signaling pathway, Chemokine signaling pathway, and other important biochemical, metabolic and signal transduction pathways were enriched in Kyoto Encyclopedia of Genes and Genomes (KEGG). In this study, analysis of macrophage transcriptomes in response to MAP infection is expected to provide key information to deeply understand role of the pathogen in initiating an inappropriate and persistent infection in susceptible hosts and molecular mechanisms that might underlie the early phases of paratuberculosis.
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Affiliation(s)
- Yanhong Bao
- grid.464353.30000 0000 9888 756XCollege of Life Sciences, Jilin Agricultural University, Xincheng Street No.2888, Changchun, 130118 China
| | - Shuiyin Wu
- grid.464353.30000 0000 9888 756XCollege of Life Sciences, Jilin Agricultural University, Xincheng Street No.2888, Changchun, 130118 China
| | - Tianze Yang
- grid.464353.30000 0000 9888 756XCollege of Life Sciences, Jilin Agricultural University, Xincheng Street No.2888, Changchun, 130118 China
| | - Zi Wang
- grid.411647.10000 0000 8547 6673College of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, 028000 China
| | - Yiming Wang
- grid.464353.30000 0000 9888 756XCollege of Animal Medicine, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118 China
| | - Xiuyun Jiang
- grid.464353.30000 0000 9888 756XCollege of Life Sciences, Jilin Agricultural University, Xincheng Street No.2888, Changchun, 130118 China ,grid.440668.80000 0001 0006 0255College of Life Sciences, Changchun Sci-Tech University, Changchun, 130600 P.R. China
| | - Hongxia Ma
- grid.464353.30000 0000 9888 756XCollege of Animal Medicine, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118 China ,grid.464353.30000 0000 9888 756XThe Key Laboratory of New Veterinary Drug Research and Development of Jilin Province, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118 China ,grid.464353.30000 0000 9888 756XThe Engineering Research Center of Bioreactor and Drug Development, Ministry of Education, Jilin Agricultural University, Xincheng Street No. 2888, Changchun, 130118 China
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