IL-37 suppresses CNS autoimmunity by increasing the frequency of Treg cells and reducing CD4 + T cell-derived IL-10 production

Autor: Reza Yazdani, Hamed Naziri, Gholamreza Azizi, Bogoljub Ciric, Mozhde Askari, Amir Moghadam Ahmadi, Jaya Aseervatham, Guang-Xian Zhang, Abdolmohamad Rostami
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of Neuroinflammation, Vol 21, Iss 1, Pp 1-11 (2024)
Druh dokumentu: article
ISSN: 1742-2094
DOI: 10.1186/s12974-024-03295-1
Popis: Abstract Background Interleukin-37 (IL-37) has anti-inflammatory properties in innate and adaptive immunity. Patients with multiple sclerosis (MS), an autoimmune inflammatory demyelinating disease of the central nervous system (CNS), have increased serum levels of IL-37. However, it is unknown whether IL-37 has an inhibitory effect on ongoing autoimmune neuroinflammation, thus offering a potential MS therapy. Aim Here, we examined the effect of IL-37 in an experimental autoimmune encephalomyelitis (EAE) model after disease onset to determine if it was protective. Findings IL-37-treated mice developed a less severe disease than control mice, with reduced demyelination as determined by increased expression of myelin basic protein. IL-37 suppressed inflammation by decreasing infiltration of CD4 + T cells into the CNS and increasing the frequency of regulatory T cells, while IL-10 expression by CD4 + T cells decreased over time in the CNS. Conclusion Our findings confirm the immunomodulatory role of IL-37 in CNS inflammation during ongoing disease, thus indicating the potential of IL-37 as an inhibitory reagent for MS therapy.
Databáze: Directory of Open Access Journals