Galectin-3 deficiency reduces the severity of experimental autoimmune encephalomyelitis

Hui Rong Jiang, Zakeya Al Rasebi, Eric Mensah-Brown, Allen Shahin, Damo Xu, Carl S. Goodyear, Sandra Y. Fukada, Fu-Tong Liu, Foo Y. Liew, Miodrag L. Lukic

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Abstract

Galectin-3 (Gal-3) is a member of the β-galactoside-binding lectin family and plays an important role in inflammation. However, the precise role of Gal-3 in autoimmune diseases remains obscure. We have investigated the functional role of Gal-3 in experimental autoimmune encephalomyelitis (EAE) following immunization with myelin oligodendrocyte glycoprotein (MOG) 35-55 peptide. Gal-3 deficient (Gal-3-/-) mice developed significantly milder EAE and markedly reduced leukocyte infiltration in the CNS compared with similarly treated wild-type (WT) mice. Gal-3-/- mice also contained fewer monocytes and macrophages but more apoptotic cells in the CNS than did WT mice. Following Ag stimulation in vitro, lymph node cells from the immunized Gal-3-/- mice produced less IL-17 and IFN-γ than did those of the WT mice. In contrast, Gal-3-/- mice produced more serum IL-10, IL-5, and IL-13 and contained higher frequency of Foxp3+ regulatory T cells in the CNS than did the WT mice. Furthermore, bone marrow-derived dendritic cells from Gal-3-/- mice produced more IL-10 in response to LPS or bacterial lipoprotein than did WT marrow-derived dendritic cells. Moreover, Gal-3-/- dendritic cells induced Ag-specific T cells to produce more IL-10, IL-5, and IL-12, but less IL-17, than did WT dendritic cells. Taken together, our data demonstrate that Gal-3 plays an important disease-exacerbating role in EAE through its multifunctional roles in preventing cell apoptosis and increasing IL-17 and IFN-γ synthesis, but decreasing IL-10 production.

Original languageEnglish (US)
Pages (from-to)1167-1173
Number of pages7
JournalJournal of Immunology
Volume182
Issue number2
StatePublished - Jan 15 2009

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ASJC Scopus subject areas

  • Immunology
  • Medicine(all)

Cite this

Jiang, H. R., Al Rasebi, Z., Mensah-Brown, E., Shahin, A., Xu, D., Goodyear, C. S., Fukada, S. Y., Liu, F-T., Liew, F. Y., & Lukic, M. L. (2009). Galectin-3 deficiency reduces the severity of experimental autoimmune encephalomyelitis. Journal of Immunology, 182(2), 1167-1173.