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Omura S, Sato F, Martinez NE, Range T, Ekshyyan L, Minagar A, Alexander JS, Tsunoda I. Immunoregulation of Theiler's virus-induced demyelinating disease by glatiramer acetate without suppression of antiviral immune responses. Arch Virol 2018; 163:1279-1284. [PMID: 29362931 DOI: 10.1007/s00705-018-3729-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 01/03/2018] [Indexed: 02/05/2023]
Abstract
While most disease-modifying drugs (DMDs) regulate multiple sclerosis (MS) by suppressing inflammation, they can potentially suppress antiviral immunity, causing progressive multifocal leukoencephalopathy (PML). The DMD glatiramer acetate (GA) has been used for MS patients who are at high risk of PML. We investigated whether GA is safe for use in viral infections by using a model of MS induced by infection with Theiler's murine encephalomyelitis virus (TMEV). Treatment of TMEV-infected mice with GA neither enhanced viral loads nor suppressed antiviral immune responses, while it resulted in an increase in the Foxp3/Il17a ratio and IL-4/IL-10 production. This is the first study to suggest that GA could be safe for MS patients with a proven viral infection.
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Affiliation(s)
- Seiichi Omura
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA.,Center for Molecular and Tumor Virology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA.,Department of Microbiology, Kindai University Faculty of Medicine, 377-2 Ohnohigashi, Osakasayama, Osaka, 589-8511, Japan
| | - Fumitaka Sato
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA.,Center for Molecular and Tumor Virology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA.,Department of Microbiology, Kindai University Faculty of Medicine, 377-2 Ohnohigashi, Osakasayama, Osaka, 589-8511, Japan
| | - Nicholas E Martinez
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA.,Center for Molecular and Tumor Virology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA
| | - Tierra Range
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA.,Center for Molecular and Tumor Virology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA
| | - Lesya Ekshyyan
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA.,Center for Molecular and Tumor Virology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA
| | - Alireza Minagar
- Department of Neurology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA
| | - J Steven Alexander
- Department of Neurology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA.,Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA
| | - Ikuo Tsunoda
- Department of Microbiology and Immunology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA. .,Center for Molecular and Tumor Virology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA. .,Department of Neurology, Louisiana State University Health Sciences Center-Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA. .,Department of Microbiology, Kindai University Faculty of Medicine, 377-2 Ohnohigashi, Osakasayama, Osaka, 589-8511, Japan.
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